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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.

A020570 Expansion of g.f. 1/((1-6*x)*(1-7*x)*(1-8*x)).

Table of values

n a(n)
0 1
1 21
2 295
3 3465
4 36751
5 365001
6 3463615
7 31794105
8 284628751
9 2499039081
10 21606842335
11 184519243545
12 1559982264751
13 13079717026761
14 108915112739455
15 901732722577785
16 7429565635164751
17 60963378722560041
18 498496565225842975
19 4064108629664292825
20 33049477950757248751

List of values

[1, 21, 295, 3465, 36751, 365001, 3463615, 31794105, 284628751, 2499039081, 21606842335, 184519243545, 1559982264751, 13079717026761, 108915112739455, 901732722577785, 7429565635164751, 60963378722560041, 498496565225842975, 4064108629664292825, 33049477950757248751]

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

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