cp's OEIS Frontend

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.

A381615 G.f. A(x) satisfies A(x) = 1/(1 - x * A(x*A(x)^3)^3).

Table of values

n a(n)
0 1
1 1
2 4
3 31
4 320
5 3969
6 56080
7 876204
8 14860614
9 270231265
10 5223002719
11 106613106181
12 2287120272173
13 51367948203527
14 1204141944566399
15 29385603693050274
16 744943334951904519
17 19580887642660810193
18 532781828387893449124
19 14984377196395037979472

List of values

[1, 1, 4, 31, 320, 3969, 56080, 876204, 14860614, 270231265, 5223002719, 106613106181, 2287120272173, 51367948203527, 1204141944566399, 29385603693050274, 744943334951904519, 19580887642660810193, 532781828387893449124, 14984377196395037979472]

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

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