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 = 1, b = -1, and c = 1, read by rows.

A168551

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 = 1, b = -1, and c = 1, read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =19a(8) =19a(9) =1a(10) =1a(11) =65a(12) =200a(13) =65a(14) =1a(15) =1a(16) =211a(17) =1536a(18) =1536a(19) =211a(20) =1a(21) =1a(22) =665a(23) =9955a(24) =22350a(25) =9955a(26) =665a(27) =1a(28) =1a(29) =2059

External references