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.

A133793 Number of n X n binary matrices with every element adjacent to some 0 horizontally or vertically.

Table of values

n a(n)
1 0
2 9
3 161
4 11236
5 3270375
6 3416753209
7 13057656650476
8 183641258024619409
9 9467975365082755623313
10 1790666611784474236947695716
11 1242439796942800308861023912760955
12 3162387266575455438028580027523664208409
13 29528027257213781096968410946112929405583355140

List of values

[0, 9, 161, 11236, 3270375, 3416753209, 13057656650476, 183641258024619409, 9467975365082755623313, 1790666611784474236947695716, 1242439796942800308861023912760955, 3162387266575455438028580027523664208409, 29528027257213781096968410946112929405583355140]

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

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