0,3

G.f.: (1-x+10*x^2+6*x^3+21*x^4-5*x^5)/(1-x^2)/(1+6*x^2+25*x^4).

(PARI) {a(n)=polcoeff((1-x+10*x^2+6*x^3+21*x^4-5*x^5)/(1-x^2)/(1+6*x^2+25*x^4+x*O(x^n)), n)}

Cf. A118435 (triangle), A118440 (row sums); A118436 (column 0 of inverse).

Sequence in context: A061769 A143125 A046628 this_sequence A107010 A052940 A102444

Adjacent sequences: A118436 A118437 A118438 this_sequence A118440 A118441 A118442

sign

Paul D. Hanna (pauldhanna(AT)juno.com), Apr 28 2006