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.

A357537 a(n) = 2*A080635(n) if n > 0. a(0) = 1.

Table of values

n a(n)
0 1
1 2
2 2
3 6
4 18
5 78
6 378
7 2214
8 14562
9 108702
10 897642
11 8171766
12 81066258
13 871695918
14 10091490138
15 125189658054
16 1656458307522
17 23288226400062
18 346663764078282
19 5447099463010326
20 90094171024954098
21 1564653992673809358
22 28467075416816935098
23 541467979789775621094

List of values

[1, 2, 2, 6, 18, 78, 378, 2214, 14562, 108702, 897642, 8171766, 81066258, 871695918, 10091490138, 125189658054, 1656458307522, 23288226400062, 346663764078282, 5447099463010326, 90094171024954098, 1564653992673809358, 28467075416816935098, 541467979789775621094]

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

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