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.

A125593 Number of nonsingular real n X n {0,1}-matrices which are not robust (cf. A125587).

Original entry on oeis.org

0, 2, 106, 17552, 10911088, 26612379360
Offset: 1

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Author

Artur Jasinski, Jan 07 2007

Keywords

Crossrefs

Formula

a(n) = A055165(n) - A125587(n).

Extensions

Typo in a(5) corrected by Giovanni Resta, Jul 23 2025