Final terms of rows of triangle in A077172.

Terms

a(0) =2a(1) =6a(2) =5a(3) =10a(4) =16a(5) =21a(6) =28a(7) =36a(8) =48a(9) =55a(10) =66a(11) =80a(12) =91a(13) =105a(14) =121a(15) =137a(16) =153a(17) =551a(18) =190a(19) =209a(20) =231a(21) =254a(22) =1271a(23) =298a(24) =326a(25) =3127a(26) =1247a(27) =47027a(28) =432a(29) =461