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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.

A193466 E.g.f.: Sum_{n>=0} x^n * Product_{k=1..n} cosh(k*x).

Table of values

n a(n)
0 1
1 1
2 2
3 9
4 84
5 965
6 12750
7 225967
8 5241880
9 139776345
10 4272148890
11 155402034491
12 6513558987540
13 304210965928597
14 15965624278036342
15 941149313037711975
16 61160783460181817520
17 4356686998946564113457
18 340627068039399668576946
19 29015657457166019702796787

List of values

[1, 1, 2, 9, 84, 965, 12750, 225967, 5241880, 139776345, 4272148890, 155402034491, 6513558987540, 304210965928597, 15965624278036342, 941149313037711975, 61160783460181817520, 4356686998946564113457, 340627068039399668576946, 29015657457166019702796787]

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

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