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

Terms

a(0) =0a(1) =6a(2) =36a(3) =120a(4) =210a(5) =300a(6) =630a(7) =1176a(8) =2016a(9) =3240a(10) =3570a(11) =4950a(12) =7140a(13) =7260a(14) =10296a(15) =14196a(16) =19110a(17) =23436a(18) =25200a(19) =32640a(20) =39060a(21) =41616a(22) =52326a(23) =61776a(24) =64980a(25) =79800a(26) =97020a(27) =116886a(28) =139656a(29) =145530