cp's OEIS Frontend

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.

A381377 E.g.f. A(x) satisfies A(x) = 1/( 1 - x * cosh(x * A(x)) )^2.

Table of values

n a(n)
0 1
1 2
2 6
3 30
4 288
5 4090
6 68160
7 1292774
8 28627200
9 739821618
10 21729070080
11 708442911022
12 25365382259712
13 992297344710698
14 42173572623716352
15 1934344590577340790
16 95175474351245230080
17 5000227637170108004194
18 279428527333796676894720
19 16552583621200571079876158

List of values

[1, 2, 6, 30, 288, 4090, 68160, 1292774, 28627200, 739821618, 21729070080, 708442911022, 25365382259712, 992297344710698, 42173572623716352, 1934344590577340790, 95175474351245230080, 5000227637170108004194, 279428527333796676894720, 16552583621200571079876158]

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

Content is available under The OEIS End-User License Agreement.