Triangular numbers with sum of digits = 10.

Terms

a(0) =28a(1) =55a(2) =91a(3) =136a(4) =190a(5) =253a(6) =325a(7) =406a(8) =703a(9) =820a(10) =1081a(11) =1225a(12) =1540a(13) =1711a(14) =2080a(15) =2701a(16) =3160a(17) =3403a(18) =5050a(19) =7021a(20) =10153a(21) =11026a(22) =12403a(23) =15400a(24) =17020a(25) =20503a(26) =21115a(27) =23005a(28) =24310a(29) =32131