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.

A140311 Number of n X n binary matrices containing no more than eight 1s in any 3 X 3 sub-block.

Table of values

n a(n)
0 1
1 2
2 16
3 511
4 65089
5 33066176
6 66993993728
7 541344347284385
8 17445985904048740529
9 2242340146792849255134720
10 1149454044962768236388517543936
11 2349989206497316681704056634171383423

List of values

[1, 2, 16, 511, 65089, 33066176, 66993993728, 541344347284385, 17445985904048740529, 2242340146792849255134720, 1149454044962768236388517543936, 2349989206497316681704056634171383423]

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

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