Hankel transform of expansion of 1/c(x)^3, c(x) the g.f. of A000108.

Terms

a(0) =1a(1) =-9a(2) =26a(3) =-25a(4) =-36a(5) =133a(6) =-132a(7) =-81a(8) =375a(9) =-374a(10) =-144a(11) =806a(12) =-805a(13) =-225a(14) =1480a(15) =-1479a(16) =-324a(17) =2451a(18) =-2450a(19) =-441a(20) =3773a(21) =-3772a(22) =-576a(23) =5500a(24) =-5499a(25) =-729a(26) =7686a(27) =-7685a(28) =-900a(29) =10385