Triangular numbers that set a new record for number of triangular divisors.

Terms

a(0) =1a(1) =3a(2) =6a(3) =36a(4) =105a(5) =120a(6) =210a(7) =630a(8) =5460a(9) =25200a(10) =73920a(11) =97020a(12) =157080a(13) =1185030a(14) =2031120a(15) =2162160a(16) =17907120a(17) =76576500a(18) =236215980a(19) =7534947420a(20) =12249176940a(21) =78091322400a(22) =203522319000a(23) =666365279580