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a(n) = Sum_{k=0..n} A363914(n, k)*(-2)^(n - k).
0

%I #5 Nov 29 2023 22:04:11

%S 1,1,3,-3,-3,-15,-39,-63,-15,-63,-735,-1023,705,-4095,-12159,11265,

%T -255,-65535,-36351,-262143,195585,770049,-3143679,-4194303,978945,

%U -1048575,-50323455,-262143,50315265,-268435455,619741185,-1073741823,-65535,3217031169,-12884770815

%N a(n) = Sum_{k=0..n} A363914(n, k)*(-2)^(n - k).

%p a := n -> local k; add(A363914(n, k)*(-2)^(n - k), k = 0..n):

%p seq(a(n), n = 0..34);

%Y Cf. A363914.

%K sign

%O 0,3

%A _Peter Luschny_, Nov 29 2023