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A074628 Sigma(n) == 2 mod 6. 1
7, 13, 19, 21, 28, 31, 37, 39, 43, 52, 57, 61, 63, 67, 73, 76, 79, 84, 93, 97, 103, 109, 111, 112, 117, 124, 127, 129, 139, 148, 151, 156, 157, 163, 171, 172, 175, 181, 183, 189, 193, 199, 201, 208, 211, 219, 223, 228, 229, 237, 241, 244, 252 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

Mod[A000203(n), 6]=2

EXAMPLE

n=39:sigma[10]=1+3+13+39=56=6.9+2

CROSSREFS

Cf. A000203, A072862, A074384, A074627-A074630.

Sequence in context: A160007 A024613 A024606 * A031194 A121058 A007921

Adjacent sequences:  A074625 A074626 A074627 * A074629 A074630 A074631

KEYWORD

easy,nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Aug 26 2002

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Last modified February 17 03:45 EST 2012. Contains 205978 sequences.