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A203149 (n-1)-st elementary symmetric function of {2,8,26,80,242,...,-1+3^n}. 2

%I #5 Mar 30 2012 18:58:05

%S 1,10,276,22496,5477312,3995536896,8740106791936,57347917373194240,

%T 1128805788065906196480,66655379003341682687344640,

%U 11807831483305724934163060490240,6275171273199511284527725270165094400,10004652813703079731923092657993740504268800

%N (n-1)-st elementary symmetric function of {2,8,26,80,242,...,-1+3^n}.

%t f[k_] := 3^k - 1; t[n_] := Table[f[k], {k, 1, n}]

%t a[n_] := SymmetricPolynomial[n - 1, t[n]]

%t Table[a[n], {n, 1, 16}] (* A203149 *)

%Y Cf. A203148.

%K nonn

%O 1,2

%A _Clark Kimberling_, Dec 29 2011

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Last modified April 19 06:41 EDT 2024. Contains 371782 sequences. (Running on oeis4.)