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Search: id:A091113
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A091113 Nonprimes of form 4k+1. +0
4
1, 9, 21, 25, 33, 45, 49, 57, 65, 69, 77, 81, 85, 93, 105, 117, 121, 125, 129, 133, 141, 145, 153, 161, 165, 169, 177, 185, 189, 201, 205, 209, 213, 217, 221, 225, 237, 245, 249, 253, 261, 265, 273, 285, 289, 297, 301, 305, 309, 321, 325, 329, 333, 341, 345 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

Do[If[ !PrimeQ[n]&&Equal[Mod[n, 4], 1], Print[n]], {n, 1, 1000}]

CROSSREFS

Adjacent sequences: A091110 A091111 A091112 this_sequence A091114 A091115 A091116

Sequence in context: A111171 A067887 A139392 this_sequence A108181 A053795 A100490

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Feb 24 2004

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.


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