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.

A259220 Number of (n+1) X (6+1) 0..1 arrays with each 2 X 2 subblock having clockwise pattern 0000 0011 or 0101.

Table of values

n a(n)
1 162
2 230
3 334
4 510
5 798
6 1278
7 2078
8 3422
9 5694
10 9566
11 16222
12 27774
13 48030
14 83934
15 148286
16 264926
17 478686
18 874622
19 1615390
20 3014238
21 5678142
22 10789470
23 20661854
24 39839870
25 77278878
26 150673118
27 295060798
28 579951582
29 1143447774
30 2260270206

List of values

[162, 230, 334, 510, 798, 1278, 2078, 3422, 5694, 9566, 16222, 27774, 48030, 83934, 148286, 264926, 478686, 874622, 1615390, 3014238, 5678142, 10789470, 20661854, 39839870, 77278878, 150673118, 295060798, 579951582, 1143447774, 2260270206]