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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.

A368931 Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x-x^3) ).

Table of values

n a(n)
0 1
1 2
2 7
3 31
4 154
5 819
6 4560
7 26244
8 154874
9 932074
10 5698745
11 35297535
12 221016593
13 1396717756
14 8896798020
15 57062237502
16 368201804973
17 2388587515239
18 15568995139404
19 101913055166811
20 669678357109300
21 4415837460391845
22 29210203356645090

List of values

[1, 2, 7, 31, 154, 819, 4560, 26244, 154874, 932074, 5698745, 35297535, 221016593, 1396717756, 8896798020, 57062237502, 368201804973, 2388587515239, 15568995139404, 101913055166811, 669678357109300, 4415837460391845, 29210203356645090]

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

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