A140840 Primes of the form 210n+11.
11, 431, 641, 1061, 1481, 1901, 2111, 2531, 2741, 3371, 3581, 4001, 4211, 4421, 5051, 5261, 5471, 6101, 6311, 6521, 7151, 8831, 9041, 9461, 10091, 10301, 11351, 11981, 12401, 12611, 12821, 13241, 13451, 14081, 15131, 15551, 15761, 15971, 16811, 17021
Offset: 1
Keywords
Programs
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Mathematica
Select[210 Range[0, 100] + 11, PrimeQ@ # &] Select[Range[11,10^4,210],PrimeQ] (* Zak Seidov, Jan 14 2014 *)
Formula
a(n) = 210*A076355(n) + 11. - Zak Seidov, Jan 14 2014
Extensions
I changed the Mathematica coding and extended the sequence. - Robert G. Wilson v, Sep 22 2008