A007314 Reversion of o.g.f. for tangent numbers. (Formerly M1905)

1, -2, -8, -152, -5024, -247616, -16845056, -1510219136, -172781715968, -24607783918592, -4275324219846656, -890827947571834880, -219400661959063912448, -63076591184224413974528, -20939716311776104453111808

Offset

1,2

References

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Table of n, a(n) for n=1..15.

Index entries for reversions of series

Maple

read transforms; s1 := [1, 2, 16, 272, 7936, 353792, 22368256]; REVERT(s1);

Crossrefs

Cf. A000182.

Sequence in context: A362729 A307326 A395427 * A102099 A012298 A009596

Adjacent sequences: A007311 A007312 A007313 * A007315 A007316 A007317

Keyword

sign

Author

N. J. A. Sloane, Mira Bernstein

Status

approved