a(0) = 0; for n > 0, a(n) = n^n*2^((n-1)^2).A007701a(0) = 0; for n > 0, a(n) = n^n*2^((n-1)^2).Terms a(0) =0a(1) =1a(2) =8a(3) =432a(4) =131072a(5) =204800000External referencesoeis: A007701