Triangle, T(n, k) = coefficients [x^k]( p(x,n) ), where p(x, n) = (x+1)^n for n < 2, otherwise (x+1)^n + x*((1+x)^(n-2) + 2^(n-2)*(1-x)^(n-1)*LerchPhi(x, 2-n, 1/2)), read by rows.

A147566

Triangle, T(n, k) = coefficients [x^k]( p(x,n) ), where p(x, n) = (x+1)^n for n < 2, otherwise (x+1)^n + x*((1+x)^(n-2) + 2^(n-2)*(1-x)^(n-1)*LerchPhi(x, 2-n, 1/2)), read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =5a(8) =5a(9) =1a(10) =1a(11) =6a(12) =14a(13) =6a(14) =1a(15) =1a(16) =7a(17) =36a(18) =36a(19) =7a(20) =1a(21) =1a(22) =8a(23) =95a(24) =256a(25) =95a(26) =8a(27) =1a(28) =1a(29) =9

External references