Triangle read by rows. The coefficients in ascending order of x^i of the polynomials p{0}(x) = 1 and p{n}(x) = Sum_{k=0..n-1; k even} binomial(n, k) * p{k}(0)*(1 - n%2 + x^(n - k)).
A214407
Triangle read by rows. The coefficients in ascending order of x^i of the polynomials p{0}(x) = 1 and p{n}(x) = Sum_{k=0..n-1; k even} binomial(n, k) * p{k}(0)*(1 - n%2 + x^(n - k)).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =0a(5) =1a(6) =0a(7) =3a(8) =0a(9) =1a(10) =7a(11) =0a(12) =6a(13) =0a(14) =1a(15) =0a(16) =35a(17) =0a(18) =10a(19) =0a(20) =1a(21) =121a(22) =0a(23) =105a(24) =0a(25) =15a(26) =0a(27) =1a(28) =0a(29) =847
External references
- oeis: A214407