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.

A302166 Number of 4Xn 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

Table of values

n a(n)
1 8
2 10
3 17
4 29
5 51
6 109
7 206
8 407
9 791
10 1584
11 3104
12 6165
13 12131
14 24059
15 47443
16 93958
17 185498
18 367087
19 725156
20 1434386
21 2834565
22 5605574
23 11079494
24 21907412
25 43304842
26 85620318
27 169257166
28 334632998
29 661534245
30 1307869617
31 2585565413
32 5111662053

List of values

[8, 10, 17, 29, 51, 109, 206, 407, 791, 1584, 3104, 6165, 12131, 24059, 47443, 93958, 185498, 367087, 725156, 1434386, 2834565, 5605574, 11079494, 21907412, 43304842, 85620318, 169257166, 334632998, 661534245, 1307869617, 2585565413, 5111662053]