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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.

A016223 Expansion of 1/((1-x) * (1-4*x) * (1-7*x)).

Table of values

n a(n)
0 1
1 12
2 105
3 820
4 6081
5 43932
6 312985
7 2212740
8 15576561
9 109385452
10 767096265
11 5375266260
12 37649233441
13 263634112572
14 1845796701945
15 12922008569380
16 90459786608721
17 633241412753292
18 4432781515242025
19 31029837110570100
20 217210325789494401
21 1520478144588475612

List of values

[1, 12, 105, 820, 6081, 43932, 312985, 2212740, 15576561, 109385452, 767096265, 5375266260, 37649233441, 263634112572, 1845796701945, 12922008569380, 90459786608721, 633241412753292, 4432781515242025, 31029837110570100, 217210325789494401, 1520478144588475612]

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

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