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.

A246689 Expansion of e.g.f. 1/(1 - x^3)^(1 + 1/x + 1/x^2).

Table of values

n a(n)
0 1
1 1
2 3
3 13
4 61
5 381
6 2791
7 22513
8 210393
9 2183401
10 24575851
11 305067621
12 4097726293
13 58876485253
14 910581818511
15 15005958062761
16 261751577640241
17 4844661893762193
18 94564968066402643
19 1938366513866527741
20 41760228574294689261
21 941821175462309114701

List of values

[1, 1, 3, 13, 61, 381, 2791, 22513, 210393, 2183401, 24575851, 305067621, 4097726293, 58876485253, 910581818511, 15005958062761, 261751577640241, 4844661893762193, 94564968066402643, 1938366513866527741, 41760228574294689261, 941821175462309114701]

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

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