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A064074 Generalized tangent number d(9,n). 1
12, 2160, 1415232, 1951153920, 4611775398912, 16653520425185280, 85285640517460180992, 587950108643300554506240, 5249943672359370392053481472, 58942155612887708094647422156800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

REFERENCES

D. Shanks. "Generalized Euler and Class Numbers." Math. Comput. 21, 689-694, 1967. Math. Comput. 22, 699, 1968.

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..174

Eric Weisstein's World of Mathematics, Tangent Number.

CROSSREFS

Sequence in context: A012675 A175014 A101812 * A005249 A177069 A204681

Adjacent sequences:  A064071 A064072 A064073 * A064075 A064076 A064077

KEYWORD

nonn,easy

AUTHOR

Eric W. Weisstein, Aug 31 2001

EXTENSIONS

Offset changed to 1 by Lars Blomberg, Sep 07 2015

STATUS

approved

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Last modified June 22 08:36 EDT 2021. Contains 345375 sequences. (Running on oeis4.)