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.

A081085 Expansion of 1 / AGM(1, 1 - 8*x) in powers of x.

Table of values

n a(n)
0 1
1 4
2 20
3 112
4 676
5 4304
6 28496
7 194240
8 1353508
9 9593104
10 68906320
11 500281280
12 3664176400
13 27033720640
14 200683238720
15 1497639994112
16 11227634469668
17 84509490017680
18 638344820152784
19 4836914483890112
20 36753795855173776
21 279985580271435584
22 2137790149251471680

List of values

[1, 4, 20, 112, 676, 4304, 28496, 194240, 1353508, 9593104, 68906320, 500281280, 3664176400, 27033720640, 200683238720, 1497639994112, 11227634469668, 84509490017680, 638344820152784, 4836914483890112, 36753795855173776, 279985580271435584, 2137790149251471680]

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

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