A072752,A001348,A100105
Eric
moongerms at wanadoo.fr
Fri Apr 18 23:55:07 CEST 2008
Hello seqfan,
just a comment :
inside
A001348 Mersenne numbers: 2^p - 1, where p is prime.
there is no crossref to
A100105 2^prime(n)-prime(n).
but
A072752 1, 2, 4, 6, 10, 12, 16, 19, 22, 28, 32, 36, 44, 49, 52,
58
Maximum gap in one-stage prime-sieves.
approach
(A001348 - A100105)=1, 2, 4, 6, 10, 12, 16, 18, 22, 28, 30, 36, 40, 42, 46,
60, 0, 0
1, 2, 4, 6, 10, 12, 16, 19, 22, 28, 32, 36, 44, 49, 52, 58
1, 2, 4, 6, 10, 12, 16, 18, 22, 28, 30, 36, 40, 42, 46, 60
0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 2, 0, 4, 7, 6, -2 (dont find it in
database)
and for
1,2,4,6,10,12,16,18,22,28,30,36,40,42,46 we have A006093 or A075728
Thanks
BestRegards
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