Bishops on an 8n+1 X 8n+1 board (see Robinson paper for details).

A123072

Bishops on an 8n+1 X 8n+1 board (see Robinson paper for details).

Terms

    a(0) =1a(1) =2a(2) =72a(3) =7200a(4) =1411200a(5) =457228800a(6) =221298739200

External references