A080775 Number of n X n monomial matrices whose nonzero entries are unit Hurwitz quaternions.

1, 24, 1152, 82944, 7962624, 955514880, 137594142720, 23115815976960, 4438236667576320, 958659120196485120, 230078188847156428800, 60740641855649297203200, 17493304854426997594521600, 5457911114581223249490739200, 1833858134499291011828888371200, 660188928419744764258399813632000

Offset: 0

Author

Artur Jasinski, Mar 11 2003

Keywords

• nonn

Crossrefs

Cf. A000165, A047053, A051189.

Formula

a(n) = 24^n*n!.