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

0,2

Links

Table of n, a(n) for n=0..15.

Formula

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

Crossrefs

Cf. A000165, A047053, A051189.

Sequence in context: A114051 A269092 A010562 * A191744 A323994 A090675

Adjacent sequences: A080772 A080773 A080774 * A080776 A080777 A080778

Keyword

nonn

Author

Artur Jasinski, Mar 11 2003

Status

approved