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A050389 Reversion of divisor function A000005. 1
1, -2, 6, -23, 102, -494, 2530, -13456, 73539, -410282, 2326674, -13371039, 77697536, -455749550, 2694915548, -16047294182, 96143497559, -579147165864, 3505497238320, -21309996083015, 130048125280624 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

LINKS

Index entries for reversions of series

N. J. A. Sloane, Transforms

CROSSREFS

Cf. A050390.

Sequence in context: A078487 A193038 A120346 * A098746 A088929 A174193

Adjacent sequences:  A050386 A050387 A050388 * A050390 A050391 A050392

KEYWORD

sign

AUTHOR

Christian G. Bower (bowerc(AT)usa.net), Nov 15 1999.

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Last modified February 16 14:07 EST 2012. Contains 205930 sequences.