Triangle read by rows: A001263 * A128064 * A000012 as infinite lower triangular matrices.

Terms

a(0) =1a(1) =2a(2) =2a(3) =5a(4) =7a(5) =3a(6) =14a(7) =19a(8) =19a(9) =4a(10) =42a(11) =51a(12) =71a(13) =41a(14) =5a(15) =132a(16) =146a(17) =216a(18) =216a(19) =76a(20) =6a(21) =429a(22) =449a(23) =617a(24) =827a(25) =547a(26) =127a(27) =7a(28) =1430a(29) =1457