0,2

Hankel transform of A089022.

a(n)=3^n*2^(n^2)=A000244(n)*A002416(n).

Sequence in context: A010043 A085905 A090443 this_sequence A041271 A121473 A063419

Adjacent sequences: A133457 A133458 A133459 this_sequence A133461 A133462 A133463

easy,nonn

Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 28 2007