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.

A261376 Number of (n+2)X(4+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00001011 00010101 or 01010101.

Table of values

n a(n)
1 97
2 157
3 424
4 1040
5 2282
6 5254
7 12500
8 28885
9 66332
10 154413
11 358786
12 830309
13 1923846
14 4465820
15 10349526
16 23993883
17 55620850
18 129004265
19 298983410
20 693371845
21 1607151330
22 3727183505
23 8638778942
24 20034575762
25 46436324264

List of values

[97, 157, 424, 1040, 2282, 5254, 12500, 28885, 66332, 154413, 358786, 830309, 1923846, 4465820, 10349526, 23993883, 55620850, 129004265, 298983410, 693371845, 1607151330, 3727183505, 8638778942, 20034575762, 46436324264]