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.

A247528 Number of length n+3 0..3 arrays with some disjoint pairs in every consecutive four terms having the same sum.

Table of values

n a(n)
1 88
2 136
3 220
4 364
5 604
6 1018
7 1732
8 2956
9 5050
10 8638
11 14794
12 25348
13 43438
14 74446
15 127606
16 218740
17 374968
18 642784
19 1101898
20 1888954
21 3238192
22 5551168
23 9516268
24 16313584
25 27966124
26 47941900
27 82186078
28 140890372
29 241526284
30 414044950

List of values

[88, 136, 220, 364, 604, 1018, 1732, 2956, 5050, 8638, 14794, 25348, 43438, 74446, 127606, 218740, 374968, 642784, 1101898, 1888954, 3238192, 5551168, 9516268, 16313584, 27966124, 47941900, 82186078, 140890372, 241526284, 414044950]