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.

A262912 Number of (n+1)X(3+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.

Table of values

n a(n)
1 1
2 6
3 15
4 53
5 318
6 1207
7 5797
8 34782
9 189135
10 1089701
11 6538206
12 38547751
13 229660021
14 1377960126
15 8242589055
16 49395098933
17 296370593598
18 1777250964247
19 10661181588037
20 63967089528222
21 383764138693935
22 2302493636842181

List of values

[1, 6, 15, 53, 318, 1207, 5797, 34782, 189135, 1089701, 6538206, 38547751, 229660021, 1377960126, 8242589055, 49395098933, 296370593598, 1777250964247, 10661181588037, 63967089528222, 383764138693935, 2302493636842181]

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

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