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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.

A171455 G.f. satisfies: A(x) = 1 + 2*x*AGM(1, A(x)^4).

Table of values

n a(n)
0 1
1 2
2 8
3 48
4 336
5 2560
6 20608
7 172432
8 1484704
9 13069296
10 117080576
11 1063944416
12 9783594304
13 90869069872
14 851218195008
15 8032861976544
16 76295247548480
17 728766670652368
18 6996258626856320
19 67467783946608064
20 653254749175955584
21 6348266152788407648
22 61896814517299122560

List of values

[1, 2, 8, 48, 336, 2560, 20608, 172432, 1484704, 13069296, 117080576, 1063944416, 9783594304, 90869069872, 851218195008, 8032861976544, 76295247548480, 728766670652368, 6996258626856320, 67467783946608064, 653254749175955584, 6348266152788407648, 61896814517299122560]

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

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