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A007314 Reversion of o.g.f. for tangent numbers.
(Formerly M1905)
0
1, -2, -8, -152, -5024, -247616, -16845056, -1510219136, -172781715968, -24607783918592, -4275324219846656, -890827947571834880, -219400661959063912448, -63076591184224413974528, -20939716311776104453111808 (list; graph; refs; listen; history; text; internal format)
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: A079613 A091299 A307326 * A102099 A012298 A009596

Adjacent sequences:  A007311 A007312 A007313 * A007315 A007316 A007317

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Mira Bernstein

STATUS

approved

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Last modified August 8 14:04 EDT 2020. Contains 336298 sequences. (Running on oeis4.)