a(n) = 2^n*E(n,1/2) + 2^(n+1)*E(n+1,0), where E(n,x) the Euler polynomials.
A240560
a(n) = 2^n*E(n,1/2) + 2^(n+1)*E(n+1,0), where E(n,x) the Euler polynomials.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =0a(4) =-11a(5) =0a(6) =211a(7) =0a(8) =-6551a(9) =0a(10) =303271a(11) =0a(12) =-19665491a(13) =0a(14) =1704396331a(15) =0a(16) =-190473830831a(17) =0a(19) =0a(21) =0a(23) =0a(25) =0a(27) =0
External references
- oeis: A240560