A140376 Nonprimes of the form 26n+1.

1, 27, 105, 183, 209, 235, 261, 287, 339, 365, 391, 417, 469, 495, 573, 625, 651, 703, 729, 755, 781, 807, 833, 885, 963, 989, 1015, 1041, 1067, 1119, 1145, 1197, 1275, 1353, 1379, 1405, 1431, 1457, 1509, 1535, 1561, 1587, 1639, 1665, 1691, 1717, 1743

Offset

1,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[26 Range[0, 100] + 1, ! PrimeQ@# &] (* Vincenzo Librandi, Mar 22 2014 *)

Prog

(Magma) [a: n in [0..80] | not IsPrime(a) where a is 26*n+1]; // Vincenzo Librandi, Mar 22 2014

Crossrefs

Cf. A059245, A100202, A102732, A093191, A093350, A092178.

Sequence in context: A232283 A036923 A036346 * A046347 A158549 A254319

Adjacent sequences: A140373 A140374 A140375 * A140377 A140378 A140379

Keyword

nonn,less

Author

Juri-Stepan Gerasimov, Jun 14 2008

Extensions

Edited by R. J. Mathar, Jun 16 2008

Status

approved