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.

A094286 Number of (s(0), s(1), ..., s(n)) such that 0 < s(i) < 6 and |s(i) - s(i-1)| <= 1 for i = 1,2,...,n, s(0) = 1, s(n) = 1.

Table of values

n a(n)
0 1
1 1
2 2
3 4
4 9
5 21
6 51
7 127
8 323
9 835
10 2187
11 5787
12 15435
13 41419
14 111659
15 302059
16 819243
17 2226219
18 6058155
19 16503211
20 44991659
21 122727595
22 334914219
23 914235051
24 2496201387
25 6816678571
26 18617371307
27 50851322539
28 138903833259
29 379443202731
30 1036559854251

List of values

[1, 1, 2, 4, 9, 21, 51, 127, 323, 835, 2187, 5787, 15435, 41419, 111659, 302059, 819243, 2226219, 6058155, 16503211, 44991659, 122727595, 334914219, 914235051, 2496201387, 6816678571, 18617371307, 50851322539, 138903833259, 379443202731, 1036559854251]