0,2

Hankel transform is (-3)^n.

a(n)=Sum_{k, 0<=k<=n}A039599(n,k)*(-4)^k.

Sequence in context: A000220 A092641 A077449 this_sequence A034739 A097941 A117161

Adjacent sequences: A126979 A126980 A126981 this_sequence A126983 A126984 A126985

sign

Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Mar 21 2007