1/2 times the number of n X n 0..3 matrices M with MM' mod 4 = I, where M' is the transpose of M and I is the n X n identity matrix.
A071303
1/2 times the number of n X n 0..3 matrices M with MM' mod 4 = I, where M' is the transpose of M and I is the n X n identity matrix.
Terms
- a(0) =1a(1) =8a(2) =192a(3) =12288a(4) =1966080a(5) =1509949440
External references
- oeis: A071303