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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.

A379171 G.f. A(x) satisfies A(x) = (1 + x)/(1 - x*A(x))^3.

Table of values

n a(n)
0 1
1 4
2 21
3 139
4 1021
5 8010
6 65708
7 556751
8 4834686
9 42800265
10 384832083
11 3504693519
12 32261240127
13 299685628629
14 2805773759322
15 26448278629697
16 250806022116194
17 2390973659474304
18 22901157688878983
19 220279614235505630
20 2126890041331033797
21 20606993367985131716

List of values

[1, 4, 21, 139, 1021, 8010, 65708, 556751, 4834686, 42800265, 384832083, 3504693519, 32261240127, 299685628629, 2805773759322, 26448278629697, 250806022116194, 2390973659474304, 22901157688878983, 220279614235505630, 2126890041331033797, 20606993367985131716]

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

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