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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.

A284164 Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

Table of values

n a(n)
1 33
2 1689
3 154108
4 16699997
5 1852406216
6 213897742464
7 25064817057781
8 2981736353245523
9 357844048109256955
10 43278292532056389680
11 5263990195553603263431
12 643350359729498071977340

List of values

[33, 1689, 154108, 16699997, 1852406216, 213897742464, 25064817057781, 2981736353245523, 357844048109256955, 43278292532056389680, 5263990195553603263431, 643350359729498071977340]

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

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