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.

A271959 G.f. A(x) satisfies: A(x)^2 = A( x^2 + 2*A(x)^3 ), with A(0)=0, A'(0)=1.

Table of values

n a(n)
1 1
2 1
3 3
4 11
5 46
6 206
7 968
8 4706
9 23475
10 119473
11 617911
12 3238299
13 17159235
14 91778276
15 494844531
16 2686731634
17 14676812392
18 80608719674
19 444853616294
20 2465582096210
21 13718412623437
22 76596933043436
23 429046752044241
24 2410260414325754
25 13576401507921773
26 76660997896449976
27 433862051647272420
28 2460614616704514931
29 13982516582761530427
30 79601022639916142384

List of values

[1, 1, 3, 11, 46, 206, 968, 4706, 23475, 119473, 617911, 3238299, 17159235, 91778276, 494844531, 2686731634, 14676812392, 80608719674, 444853616294, 2465582096210, 13718412623437, 76596933043436, 429046752044241, 2410260414325754, 13576401507921773, 76660997896449976, 433862051647272420, 2460614616704514931, 13982516582761530427, 79601022639916142384]

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

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