I restarted the search for primes with k = 105105.
So far I have checked up to n = 395 000 and found 4 primes:
105105*2^3287911
105105*2^3339641
105105*2^3588321
105105*2^3870911
Also regarding k=20020913, I have found another prime:
20020913*2^8626921
I will update those k's in Prime Wiki.
