A140367 Composites of the form 26k + 5.

57, 135, 161, 187, 213, 265, 291, 343, 369, 395, 447, 473, 525, 551, 603, 629, 655, 681, 707, 759, 785, 837, 889, 915, 993, 1045, 1071, 1149, 1175, 1227, 1253, 1305, 1331, 1357, 1383, 1435, 1461, 1513, 1539, 1565, 1591, 1617, 1643, 1695, 1773, 1799, 1825

Offset

1,1

Links

Table of n, a(n) for n=1..47.

Author?, Tables of primes up to 9999

Mathematica

Select[26Range[0, 80]+5, !PrimeQ[#]&] (* Harvey P. Dale, May 26 2011 *)

Prog

(Magma) [(26*n+5): n in [0..100]|not IsPrime(26*n+5)] // Vincenzo Librandi, Dec 18 2010

Crossrefs

Cf. A102732.

Sequence in context: A020186 A063316 A020284 * A044308 A044689 A250606

Adjacent sequences: A140364 A140365 A140366 * A140368 A140369 A140370

Keyword

nonn,less

Author

Juri-Stepan Gerasimov, Jun 14 2008

Extensions

Edited by R. J. Mathar, Jun 16 2008

Status

approved