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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.

A381346 Expansion of e.g.f. 1/( 1 - sinh(sqrt(2)*x) / sqrt(2) ).

Table of values

n a(n)
0 1
1 1
2 2
3 8
4 40
5 244
6 1808
7 15632
8 154240
9 1712656
10 21132032
11 286800128
12 4246266880
13 68108302144
14 1176458774528
15 21772909267712
16 429818456473600
17 9015349812633856
18 200218257664704512
19 4693597812326094848
20 115820240623410872320
21 3000905720793597113344

List of values

[1, 1, 2, 8, 40, 244, 1808, 15632, 154240, 1712656, 21132032, 286800128, 4246266880, 68108302144, 1176458774528, 21772909267712, 429818456473600, 9015349812633856, 200218257664704512, 4693597812326094848, 115820240623410872320, 3000905720793597113344]

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

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