Riordan array (1, x*f(x)) where f(x) is the g.f. of A007564.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =4a(8) =2a(9) =1a(10) =0a(11) =19a(12) =9a(13) =3a(14) =1a(15) =0a(16) =100a(17) =46a(18) =15a(19) =4a(20) =1a(21) =0a(22) =562a(23) =254a(24) =82a(25) =22a(26) =5a(27) =1a(28) =0a(29) =3304