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.

A381281 Expansion of e.g.f. 1/(1 - x * cosh(3*x)).

Table of values

n a(n)
0 1
1 1
2 2
3 33
4 240
5 2145
6 33120
7 480753
8 7878528
9 158696577
10 3384322560
11 78934776129
12 2053186983936
13 57231998680545
14 1714372871178240
15 55323775198258065
16 1899762412262031360
17 69264871449203672577
18 2677542944055160209408
19 109197154520146527569505

List of values

[1, 1, 2, 33, 240, 2145, 33120, 480753, 7878528, 158696577, 3384322560, 78934776129, 2053186983936, 57231998680545, 1714372871178240, 55323775198258065, 1899762412262031360, 69264871449203672577, 2677542944055160209408, 109197154520146527569505]

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

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