a(n) = 2^(n^2 - 1) * Product_{j=1..n, k=1..n} (1 + sin(Pi*j/n)^2 + sin(Pi*k/n)^2).
A340396
a(n) = 2^(n^2 - 1) * Product_{j=1..n, k=1..n} (1 + sin(Pi*j/n)^2 + sin(Pi*k/n)^2).
Terms
- a(0) =0a(1) =1a(2) =96a(3) =93789a(4) =1244160000
External references
- oeis: A340396