A Prime Sequence - Page 2

Jens K Andersen · 2008-12-07, 08:25

15-bad: 16434786721

Jens K Andersen · 2008-12-08, 04:43

16-bad: 51321114983
I stopped the search there.

CRGreathouse · 2008-12-08, 15:24

So here are the minimal k-bad primes for k in 1..16, in Sloane b-file format:

1 5
2 47
3 389
4 449
5 26627
6 47681
7 237343
8 1108337
9 2875111
10 9189181
11 12180187
12 208564813
13 1746334757
14 3170297129
15 16434786721
16 51321114983

davar55 · 2008-12-11, 14:38

Quote:

Originally Posted by CRGreathouse

So here are the minimal k-bad primes for k in 1..16, in Sloane b-file format:

1 5
2 47
3 389
4 449
5 26627
6 47681
7 237343
8 1108337
9 2875111
10 9189181
11 12180187
12 208564813
13 1746334757
14 3170297129
15 16434786721
16 51321114983

Is this something that should be submitted to OEIS?

CRGreathouse · 2008-12-11, 15:56

Quote:

Originally Posted by davar55

Is this something that should be submitted to OEIS?

I didn't think so, but if you'd like to the format's all ready to go.

I'm trying for 17, but that hasn't gone anywhere yet. I won't have the patience or processing power to do 18.

davar55 · 2009-07-02, 19:58

Have you tried, not a sieve, or a multi-core processor,
but strictly two processors running in parallel
and exchanging data and information ala by the internet?

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2008-12-07, 08:25	#12
Jens K Andersen Feb 2006 Denmark 11100110₂ Posts	15-bad: 16434786721

2008-12-08, 04:43	#13
Jens K Andersen Feb 2006 Denmark 2·5·23 Posts	16-bad: 51321114983 I stopped the search there.

2008-12-08, 15:24	#14
CRGreathouse Aug 2006 3×1,993 Posts	So here are the minimal k-bad primes for k in 1..16, in Sloane b-file format: 1 5 2 47 3 389 4 449 5 26627 6 47681 7 237343 8 1108337 9 2875111 10 9189181 11 12180187 12 208564813 13 1746334757 14 3170297129 15 16434786721 16 51321114983

2009-07-02, 19:58	#17
davar55 May 2004 New York City 5×7×11² Posts	Have you tried, not a sieve, or a multi-core processor, but strictly two processors running in parallel and exchanging data and information ala by the internet?