Stirling-like number triangle defined by sequence A000217.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =13a(8) =10a(9) =1a(10) =1a(11) =40a(12) =73a(13) =20a(14) =1a(15) =1a(16) =121a(17) =478a(18) =273a(19) =35a(20) =1a(21) =1a(22) =364a(23) =2989a(24) =3208a(25) =798a(26) =56a(27) =1a(28) =1a(29) =1093