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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.

A375172 Expansion of e.g.f. exp( x^2/(1-x)^3 ) / (1-x).

Table of values

n a(n)
0 1
1 1
2 4
3 30
4 276
5 2940
6 36120
7 507360
8 8032080
9 141235920
10 2725107840
11 57151211040
12 1293129351360
13 31376876731200
14 812303844992640
15 22338850742208000
16 650081402588217600
17 19951131574037664000
18 643805564147435289600
19 21785365857810973017600

List of values

[1, 1, 4, 30, 276, 2940, 36120, 507360, 8032080, 141235920, 2725107840, 57151211040, 1293129351360, 31376876731200, 812303844992640, 22338850742208000, 650081402588217600, 19951131574037664000, 643805564147435289600, 21785365857810973017600]

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

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