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.

A335473 Number of compositions of n avoiding the pattern (2,1,2).

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 8
5 15
6 29
7 55
8 103
9 190
10 347
11 630
12 1134
13 2028
14 3585
15 6291
16 10950
17 18944
18 32574
19 55692
20 94618
21 159758
22 268147
23 447502
24 743097
25 1227910
26 2020110
27 3308302
28 5394617
29 8757108
30 14155386
31 22784542
32 36529813
33 58343498
34 92850871
35 147254007
36 232750871
37 366671436

List of values

[1, 1, 2, 4, 8, 15, 29, 55, 103, 190, 347, 630, 1134, 2028, 3585, 6291, 10950, 18944, 32574, 55692, 94618, 159758, 268147, 447502, 743097, 1227910, 2020110, 3308302, 5394617, 8757108, 14155386, 22784542, 36529813, 58343498, 92850871, 147254007, 232750871, 366671436]

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

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