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A015793 phi(n) + 4 | sigma(n). 0
6, 15, 21, 24, 30, 33, 39, 42, 51, 57, 66, 69, 78, 84, 87, 93, 96, 102, 108, 111, 114, 120, 123, 129, 138, 141, 159, 174, 175, 177, 183, 186, 201, 213, 219, 220, 222, 237, 246, 249, 258, 267, 282, 291, 303, 309, 318, 321, 327, 339, 350, 354, 366 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

CROSSREFS

Sequence in context: A056901 A012412 A009092 * A063466 A138109 A072521

Adjacent sequences:  A015790 A015791 A015792 * A015794 A015795 A015796

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 17:27 EST 2012. Contains 205644 sequences.