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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.

A228712 G.f. A(x) satisfies: 1/A(x)^4 + 16*x*A(x)^4 = 1/A(x^2)^2 + 4*x*A(x^2)^2.

Table of values

n a(n)
0 1
1 3
2 72
3 2307
4 86295
5 3513477
6 151235361
7 6768437853
8 311788291023
9 14685531568689
10 704028657330720
11 34239755370728001
12 1685178804762196176
13 83776625650642935108
14 4200738946110487797030
15 212201486734654901466543
16 10789009182188638106874636
17 551682346017956870539952958

List of values

[1, 3, 72, 2307, 86295, 3513477, 151235361, 6768437853, 311788291023, 14685531568689, 704028657330720, 34239755370728001, 1685178804762196176, 83776625650642935108, 4200738946110487797030, 212201486734654901466543, 10789009182188638106874636, 551682346017956870539952958]

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

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