Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #8 Sep 08 2022 08:45:34
%S 21,99,125,177,203,255,333,385,411,437,489,515,567,645,671,697,723,
%T 749,775,801,879,905,931,957,1035,1113,1139,1165,1191,1243,1269,1295,
%U 1347,1425,1477,1503,1529,1555,1581,1633,1659,1685,1711,1737,1763,1815,1841
%N Composites of the form 26k + 21.
%o (Magma) [(26*n+21): n in [0..100]|not IsPrime(26*n+21)] // _Vincenzo Librandi_, Dec 18 2010
%Y Cf. A092178.
%K nonn,less
%O 1,1
%A _Juri-Stepan Gerasimov_, Jun 14 2008
%E Edited by _R. J. Mathar_, Jun 16 2008