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.

A352258 Number of symmetric binary n X n matrices with no 2 X 2 submatrix of all 1s.

Table of values

n a(n)
1 2
2 7
3 42
4 399
5 5614
6 112221
7 3102020
8 116076057
9 5774524092
10 376068483351
11 31643635513816
12 3401292647423655
13 462391295351625128
14 78801283167350942685
15 1775935516860530625139
16 230933325874558862792569

List of values

[2, 7, 42, 399, 5614, 112221, 3102020, 116076057, 5774524092, 376068483351, 31643635513816, 3401292647423655, 462391295351625128, 78801283167350942685, 1775935516860530625139, 230933325874558862792569]

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

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