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.

A208027 Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 0 and 1 0 1 vertically.

Table of values

n a(n)
1 42
2 1764
3 14946
4 118179
5 917293
6 7184755
7 56728924
8 445530887
9 3494319540
10 27469986456
11 215862782229
12 1695298344579
13 13318507574891
14 104639074476398
15 822013471428905
16 6457620629731560
17 50731795567376622
18 398547965742628997

List of values

[42, 1764, 14946, 118179, 917293, 7184755, 56728924, 445530887, 3494319540, 27469986456, 215862782229, 1695298344579, 13318507574891, 104639074476398, 822013471428905, 6457620629731560, 50731795567376622, 398547965742628997]

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

Content is available under The OEIS End-User License Agreement.