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.

A067222 Number of n X n 0..14 matrices with all row and column sums equal.

Original entry on oeis.org

1, 15, 225, 229503, 42980713761, 1380524064964529355, 7955148565342992851131291305
Offset: 0

Views

Author

R. H. Hardin, Feb 20 2002

Keywords

Crossrefs

Column k=14 of A202784.

Extensions

a(5)-a(6) from Sean A. Irvine, Dec 10 2023
a(0)=1 prepended by Andrew Howroyd, Oct 14 2024