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Search: id:A050397
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A050397 Reversion of sequence of involutions (A000085). +0
2
1, -2, 4, -10, 30, -104, 392, -1568, 6520, -27976, 122944, -551680, 2518912, -11684000, 54957216, -261897024, 1263216192, -6164172608, 30416619200, -151750104800, 765364073120, -3902783995520, 20123276097920 (list; graph; listen)
OFFSET

1,2
LINKS

N. J. A. Sloane, Transforms

Index entries for reversions of series

CROSSREFS

Cf. A050398.

Sequence in context: A000733 A092073 A112846 this_sequence A091174 A005193 A101901

Adjacent sequences: A050394 A050395 A050396 this_sequence A050398 A050399 A050400

KEYWORD

sign

AUTHOR

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

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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