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A015837 Numbers n such that phi(n) | sigma(n + 2). 0
2, 3, 4, 5, 9, 10, 12, 13, 18, 21, 22, 25, 28, 36, 38, 40, 42, 45, 52, 55, 58, 60, 90, 93, 108, 112, 117, 130, 152, 153, 156, 175, 180, 182, 187, 208, 222, 226, 228, 246, 258, 264, 280, 306, 310, 313, 380, 396, 468, 490, 504, 532, 592, 609, 628, 700 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A139456 A194410 A081869 * A075177 A062096 A176008

Adjacent sequences:  A015834 A015835 A015836 * A015838 A015839 A015840

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com)

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Last modified February 15 04:23 EST 2012. Contains 205694 sequences.