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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.

A171753 Expansion of g.f. 1/(1-3*x-x^2/(1-3*x-x^2/(1-3*x))).

Table of values

n a(n)
0 1
1 3
2 10
3 36
4 137
5 543
6 2218
7 9264
8 39329
9 168939
10 731770
11 3188364
12 13948745
13 61196775
14 269007994
15 1184076216
16 5216618369
17 22996827795
18 101421591466
19 447422614068
20 1974197123657
21 8712062181999
22 38449506441994
23 169702143024768
24 749034931995041
25 3306200447618043

List of values

[1, 3, 10, 36, 137, 543, 2218, 9264, 39329, 168939, 731770, 3188364, 13948745, 61196775, 269007994, 1184076216, 5216618369, 22996827795, 101421591466, 447422614068, 1974197123657, 8712062181999, 38449506441994, 169702143024768, 749034931995041, 3306200447618043]

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

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