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A152772 a(n) = sigma(n) - 3*d(n) + 3. 2
1, 0, 1, 1, 3, 3, 5, 6, 7, 9, 9, 13, 11, 15, 15, 19, 15, 24, 17, 27, 23, 27, 21, 39, 25, 33, 31, 41, 27, 51, 29, 48, 39, 45, 39, 67, 35, 51, 47, 69, 39, 75, 41, 69, 63, 63, 45, 97, 51, 78, 63, 83, 51, 99, 63, 99, 71, 81, 57, 135 (list; graph; refs; listen; history; internal format)
OFFSET

1,5

CROSSREFS

Cf. A000005, A000203, A152770, A152771.

Sequence in context: A079789 A131209 A116592 * A089175 A138373 A011976

Adjacent sequences:  A152769 A152770 A152771 * A152773 A152774 A152775

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Dec 14 2008

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Last modified February 17 14:16 EST 2012. Contains 206034 sequences.