Riordan array (f(x), x*f(x)) where f(x) is the g.f. of A064613.

Terms

a(0) =1a(1) =3a(2) =1a(3) =10a(4) =6a(5) =1a(6) =37a(7) =29a(8) =9a(9) =1a(10) =150a(11) =134a(12) =57a(13) =12a(14) =1a(15) =654a(16) =622a(17) =318a(18) =94a(19) =15a(20) =1a(21) =3012a(22) =2948a(23) =1686a(24) =616a(25) =140a(26) =18a(27) =1a(28) =14445a(29) =14317