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.

A293099 Number of n X 7 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

Table of values

n a(n)
1 3
2 2220
3 205195
4 24773296
5 2728695681
6 328979478088
7 38469698642410
8 4665971856266714
9 560706154294046909
10 68470475134869958112
11 8347937003432022928553
12 1025774531240519319091628

List of values

[3, 2220, 205195, 24773296, 2728695681, 328979478088, 38469698642410, 4665971856266714, 560706154294046909, 68470475134869958112, 8347937003432022928553, 1025774531240519319091628]

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

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