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.

A262473 Number of (3+1) X (n+1) 0..1 arrays with each row divisible by 3 and each 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 4
2 9
3 36
4 121
5 484
6 1849
7 7396
8 29241
9 116964
10 466489
11 1865956
12 7458361
13 29833444
14 119311929
15 477247716
16 1908903481
17 7635613924
18 30542106169
19 122168424676
20 488672300601
21 1954689202404
22 7818751217209
23 31275004868836
24 125099997105721

List of values

[4, 9, 36, 121, 484, 1849, 7396, 29241, 116964, 466489, 1865956, 7458361, 29833444, 119311929, 477247716, 1908903481, 7635613924, 30542106169, 122168424676, 488672300601, 1954689202404, 7818751217209, 31275004868836, 125099997105721]

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

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