Triangle in A071944 with rows reversed.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =1a(6) =6a(7) =5a(8) =3a(9) =1a(10) =19a(11) =16a(12) =9a(13) =4a(14) =1a(15) =63a(16) =54a(17) =31a(18) =14a(19) =5a(20) =1a(21) =219a(22) =188a(23) =111a(24) =52a(25) =20a(26) =6a(27) =1a(28) =787a(29) =676