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.

A133556 Number of n X n binary matrices with every 1 diagonally or antidiagonally adjacent to some 0.

Original entry on oeis.org

1, 9, 187, 11881, 3720993, 4652194849, 21048197450115, 362982575751004609, 24187438805159042241345, 6154694340999818634869088969, 5974124007380479364088559506443355
Offset: 1

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Author

R. H. Hardin, Dec 25 2007

Keywords

Comments

Number of dominating sets in the direct product of the graphs P_n and P_n. - Andrew Howroyd, May 10 2017

Crossrefs