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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A302452 a(n) = coefficient of x^(2*n-1) in the n-th iteration (n-fold self-composition) of e.g.f. sinh(x).

Table of values

n a(n)
1 1
2 2
3 33
4 2160
5 368145
6 130426016
7 83303826249
8 87104014381056
9 139088689115885505
10 321859857651846029824
11 1036109938469605247521009
12 4490275483028481600517832704
13 25503692273369769781221175069521
14 185636732310716855091866841134243840
15 1699077450890747555020338066545506541145

List of values

[1, 2, 33, 2160, 368145, 130426016, 83303826249, 87104014381056, 139088689115885505, 321859857651846029824, 1036109938469605247521009, 4490275483028481600517832704, 25503692273369769781221175069521, 185636732310716855091866841134243840, 1699077450890747555020338066545506541145]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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