0,2
Hankel transform of A130978 .
Vincenzo Librandi, Table of n, a(n) for n = 0..25
a(n)=7^n*6^(n^2)=A000420(n)*A076781(n).
(MAGMA)[7^n*6^(n^2): n in [0..10]]; // Vincenzo Librandi, May 30 2011
Sequence in context: A174766 A184895 A159433 * A135425 A028669 A147687
Adjacent sequences: A135311 A135312 A135313 * A135315 A135316 A135317
nonn
Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Dec 05 2007