Triangle in A059037 read by rows from left to right.

Terms

a(0) =1a(1) =1a(2) =2a(3) =7a(4) =5a(5) =1a(6) =1a(7) =17a(8) =27a(9) =31a(10) =174a(11) =164a(12) =130a(13) =69a(14) =1a(15) =1a(16) =373a(17) =729a(18) =1020a(19) =1158a(20) =1194a(21) =9729a(22) =9544a(23) =8798a(24) =7166a(25) =4961a(26) =2491a(27) =1a(28) =1a(29) =20020