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.

A140310 Number of n X n binary matrices containing no more than seven 1s in any 3 X 3 sub-block.

Table of values

n a(n)
0 1
1 2
2 16
3 502
4 61788
5 29829353
6 56365481377
7 417452923577327
8 12115365147171963168
9 1377708150938828616858899
10 613888995116283293759860580312
11 1071847970096627711898648239726154442

List of values

[1, 2, 16, 502, 61788, 29829353, 56365481377, 417452923577327, 12115365147171963168, 1377708150938828616858899, 613888995116283293759860580312, 1071847970096627711898648239726154442]

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

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