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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.

A370511 Expansion of Sum_{k>=0} k! * ( x/(1-x^3) )^k.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 25
5 124
6 738
7 5137
8 40926
9 367236
10 3664321
11 40241168
12 482282700
13 6263450401
14 87618831730
15 1313438757210
16 21003941166601
17 356910563528412
18 6422026243338846
19 121980432505328545
20 2438957859604373534
21 51206341993873093608
22 1126314833020691642497

List of values

[1, 1, 2, 6, 25, 124, 738, 5137, 40926, 367236, 3664321, 40241168, 482282700, 6263450401, 87618831730, 1313438757210, 21003941166601, 356910563528412, 6422026243338846, 121980432505328545, 2438957859604373534, 51206341993873093608, 1126314833020691642497]

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

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