a(n) = (1/2) * (number of n X n 0..6 matrices M with MM' mod 7 = I, where M' is the transpose of M and I is the n X n identity matrix).
A071306
a(n) = (1/2) * (number of n X n 0..6 matrices M with MM' mod 7 = I, where M' is the transpose of M and I is the n X n identity matrix).
Terms
- a(0) =1a(1) =8a(2) =336a(3) =112896a(4) =276595200
External references
- oeis: A071306