(n-1)-st elementary symmetric function of {2,8,26,80,242,...,-1+3^n}.
A203149
(n-1)-st elementary symmetric function of {2,8,26,80,242,...,-1+3^n}.
Terms
- a(0) =1a(1) =10a(2) =276a(3) =22496a(4) =5477312a(5) =3995536896
External references
- oeis: A203149