Triangle read by rows: A007318^(-1) * A136536.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =3a(6) =4a(7) =4a(8) =10a(9) =4a(10) =9a(11) =9a(12) =13a(13) =25a(14) =5a(15) =21a(16) =21a(17) =21a(18) =51a(19) =51a(20) =6a(21) =51a(22) =51a(23) =51a(24) =66a(25) =166a(26) =91a(27) =7a(28) =127a(29) =127