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.

A207733 Number of 6Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically.

Table of values

n a(n)
1 21
2 441
3 1113
4 2809
5 27931
6 277729
7 1029231
8 3814209
9 27996255
10 205492225
11 919461235
12 4114067881
13 26135084283
14 166026096369
15 818513711715
16 4035297528025
17 23843629466995
18 140886430854481
19 730455853771371

List of values

[21, 441, 1113, 2809, 27931, 277729, 1029231, 3814209, 27996255, 205492225, 919461235, 4114067881, 26135084283, 166026096369, 818513711715, 4035297528025, 23843629466995, 140886430854481, 730455853771371]

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

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