Triangular numbers with product of digits also a triangular number.

Terms

a(0) =0a(1) =1a(2) =3a(3) =6a(4) =10a(5) =66a(6) =105a(7) =120a(8) =153a(9) =190a(10) =210a(11) =231a(12) =300a(13) =351a(14) =406a(15) =465a(16) =630a(17) =703a(18) =741a(19) =780a(20) =820a(21) =903a(22) =990a(23) =1035a(24) =1081a(25) =1326a(26) =1540a(27) =1770a(28) =1830a(29) =2016