G.f. equals the square root of P(4*x), where P(x) is the g.f. of the partition numbers (A000041).

A271235

G.f. equals the square root of P(4*x), where P(x) is the g.f. of the partition numbers (A000041).

Terms

    a(0) =1a(1) =2a(2) =14a(3) =68a(4) =406a(5) =1820a(6) =10892a(7) =48008a(8) =266214a(9) =1248044a(10) =6454116a(11) =29642424a(12) =156638076a(13) =707729176a(14) =3551518936a(15) =16671232784a(16) =81685862790a(17) =375557689292

External references