Triangular numbers that are the product of a triangular number and a prime number.

Terms

a(0) =0a(1) =3a(2) =6a(3) =15a(4) =21a(5) =45a(6) =66a(7) =78a(8) =105a(9) =190a(10) =210a(11) =231a(12) =435a(13) =465a(14) =630a(15) =861a(16) =903a(17) =1035a(18) =1326a(19) =2415a(20) =2556a(21) =2628a(22) =3003a(23) =3570a(24) =4005a(25) =4950a(26) =5460a(27) =5565a(28) =5995a(29) =7140