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.

A262269 Number of (n+2)X(3+2) 0..1 arrays with each row and column divisible by 5, read as a binary number with top and left being the most significant bits.

Table of values

n a(n)
1 7
2 49
3 149
4 585
5 3639
6 23977
7 129481
8 762529
9 4977703
10 33121201
11 212297621
12 1392648681
13 9394847463
14 63791220457
15 431043859993
16 2933293326289
17 20157021722983
18 138871827073201
19 957160775849621
20 6614231267870601

List of values

[7, 49, 149, 585, 3639, 23977, 129481, 762529, 4977703, 33121201, 212297621, 1392648681, 9394847463, 63791220457, 431043859993, 2933293326289, 20157021722983, 138871827073201, 957160775849621, 6614231267870601]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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