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.

A221543 Number of 0..n arrays of length 5 with each element differing from at least one neighbor by something other than 1, starting with 0.

Table of values

n a(n)
1 3
2 22
3 103
4 303
5 716
6 1455
7 2658
8 4487
9 7128
10 10791
11 15710
12 22143
13 30372
14 40703
15 53466
16 69015
17 87728
18 110007
19 136278
20 166991
21 202620
22 243663
23 290642
24 344103
25 404616
26 472775
27 549198
28 634527
29 729428
30 834591
31 950730
32 1078583
33 1218912

List of values

[3, 22, 103, 303, 716, 1455, 2658, 4487, 7128, 10791, 15710, 22143, 30372, 40703, 53466, 69015, 87728, 110007, 136278, 166991, 202620, 243663, 290642, 344103, 404616, 472775, 549198, 634527, 729428, 834591, 950730, 1078583, 1218912]