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.

A054491 a(n) = 4*a(n-1) - a(n-2), a(0)=1, a(1)=6.

Table of values

n a(n)
0 1
1 6
2 23
3 86
4 321
5 1198
6 4471
7 16686
8 62273
9 232406
10 867351
11 3236998
12 12080641
13 45085566
14 168261623
15 627960926
16 2343582081
17 8746367398
18 32641887511
19 121821182646
20 454642843073
21 1696750189646
22 6332357915511
23 23632681472398

List of values

[1, 6, 23, 86, 321, 1198, 4471, 16686, 62273, 232406, 867351, 3236998, 12080641, 45085566, 168261623, 627960926, 2343582081, 8746367398, 32641887511, 121821182646, 454642843073, 1696750189646, 6332357915511, 23632681472398]

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

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