Triangle read by rows: A113547 without its main diagonal.

Terms

a(0) =1a(1) =1a(2) =2a(3) =1a(4) =4a(5) =5a(6) =1a(7) =8a(8) =13a(9) =15a(10) =1a(11) =16a(12) =35a(13) =47a(14) =52a(15) =1a(16) =32a(17) =97a(18) =153a(19) =188a(20) =203a(21) =1a(22) =64a(23) =275a(24) =515a(25) =706a(26) =825a(27) =877a(28) =1a(29) =128