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Old 2009-03-20, 08:17   #1
schickel
 
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Exclamation Some recommended sequences

Here are some recommendations for sequences to take up:
Code:
154548  696. 2^4 * 3 c104 sz 111
553014 1111. 2^2 * 3 c96 sz 108
Obviously, the ones with the larger "cxx" values will probably decrease in value after factorization (but not if the guide is an abundant number).

Black guide sequences will usually be better than blue guide sequences.

Check here for a listing of the longest sequences.

Please remember to check the reservation thread in case someone reserves one of these....

WARNING: We're beginning to run out of immediately stable sequences, so be prepared for the sequences to rise a few digits before getting rid of the 3 (or whatever).

Last fiddled with by TimSorbet on 2009-10-05 at 14:23 Reason: adding one
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Old 2009-07-11, 20:31   #2
jrk
 
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taking 214120
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Old 2009-07-19, 20:01   #3
Batalov
 
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Phi(4,2^7658614+1)/2

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taking 218292
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Old 2009-07-20, 22:17   #4
Batalov
 
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taking 216810 from 666.
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Old 2009-07-21, 00:15   #5
fivemack
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taking 217362

(recomputed from step 1 to 721 already ... clear bug in the factorization.ath.cx record)
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Old 2009-07-21, 01:26   #6
Batalov
 
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You can start from WolfCrey's end-of-file lines:
Code:
 
1383 . 286820322483281615172110136633016906678666715814632942805882483965982948460458740764549167008273412 = 2^2 * 3 * 13 * 558737891 * 3290615940686698056645281154083612633961644236751479874931132316579515819791893431198397
1384 . 433907668636424405035198409008745019940297594386383608128299766203593456795761629694535286452156860 = 2^2 * 3 * 5 * 31 * 11783 * 20539481 * 23921629 * 1039433693 * 38766045164216654243013616543092244056647948841103025216675526529321
1385 . 820332014449784109079496038584617331966213166811665664451600510600923443457791742514088151505045060 = 2^2 * 3 * 5 * 42864122819923627 * 2803162728062777020861 * 113787920253321211102040485795299530070124154204239849374433
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Old 2009-07-21, 14:55   #7
fivemack
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Let's do 122892 too (I'm assuming the factorization.ath.cx page is right for this one)

10metreh: It looks good, give it a go!

Last fiddled with by 10metreh on 2009-07-21 at 15:03
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Old 2009-07-25, 10:00   #8
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Reserving 153090
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