Triangle of the coefficients [x^k] P_n(x) of the polynomials P_n(x) = 1/n * sum(j=0..floor(n/2), (-1)^j * binomial(n,j) * (n-4*j) * x^(n-2*j) ).

A137277

Triangle of the coefficients [x^k] P_n(x) of the polynomials P_n(x) = 1/n * sum(j=0..floor(n/2), (-1)^j * binomial(n,j) * (n-4*j) * x^(n-2*j) ).

Terms

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

External references