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.

A262850 Number of (1+2)X(n+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits.

Table of values

n a(n)
1 6
2 6
3 12
4 318
5 900
6 4536
7 34782
8 178926
9 1042284
10 6538206
11 38160540
12 227814120
13 1377960126
14 8227422006
15 49321272972
16 296370593598
17 1776644188020
18 10658199015576
19 63967089528222
20 383739633130686
21 2302372435469484

List of values

[6, 6, 12, 318, 900, 4536, 34782, 178926, 1042284, 6538206, 38160540, 227814120, 1377960126, 8227422006, 49321272972, 296370593598, 1776644188020, 10658199015576, 63967089528222, 383739633130686, 2302372435469484]

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

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