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A082051 Sum of divisors of n that are not of the form 3k+2. 1
1, 1, 4, 5, 1, 10, 8, 5, 13, 11, 1, 26, 14, 8, 19, 21, 1, 37, 20, 15, 32, 23, 1, 50, 26, 14, 40, 40, 1, 65, 32, 21, 37, 35, 8, 89, 38, 20, 56, 55, 1, 80, 44, 27, 73, 47, 1, 114, 57, 36, 55, 70, 1, 118, 56, 40, 80, 59, 1, 141, 62, 32, 104, 85, 14, 131, 68, 39, 73, 88, 1, 185 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

COMMENTS

a(A003627(n))=1.

PROG

(PARI) for(n=1, 100, print1(sumdiv(n, d, if(d%3!=2, d))", "))

CROSSREFS

Cf. A000203, A046913, A078181, A078182, A082050, A027748.

Sequence in context: A178233 A201411 A206282 * A196848 A108446 A109962

Adjacent sequences:  A082048 A082049 A082050 * A082052 A082053 A082054

KEYWORD

nonn,easy

AUTHOR

Ralf Stephan (ralf(AT)ark.in-berlin.de), Apr 02 2003

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.