Expansion of g.f. (1/2)*( a*(1+x)^n + b*(1-x)^(n+2)*LerchPhi(x, -n-1, 1) + c*2^(n+1)*(1-x)^(n+1)*LerchPhi(x, -n, 1/2) ), where a = 3, b = -3, and c = 1, read by rows.

A168552

Expansion of g.f. (1/2)*( a*(1+x)^n + b*(1-x)^(n+2)*LerchPhi(x, -n-1, 1) + c*2^(n+1)*(1-x)^(n+1)*LerchPhi(x, -n, 1/2) ), where a = 3, b = -3, and c = 1, read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =11a(8) =11a(9) =1a(10) =1a(11) =43a(12) =140a(13) =43a(14) =1a(15) =1a(16) =159a(17) =1244a(18) =1244a(19) =159a(20) =1a(21) =1a(22) =551a(23) =8779a(24) =19954a(25) =8779a(26) =551a(27) =1a(28) =1a(29) =1819

External references