Smallest triangular number divisible by exactly n triangular numbers.

Terms

a(0) =1a(1) =3a(2) =6a(3) =36a(4) =105a(5) =120a(6) =780a(7) =210a(8) =990a(9) =630a(10) =19110a(11) =7140a(12) =5460a(13) =176715a(14) =25200a(15) =73920a(16) =103740a(17) =145530a(18) =97020a(19) =157080a(20) =4744740a(21) =2386020a(22) =1185030a(23) =2031120a(24) =3483480a(25) =13857480a(26) =8817900a(27) =118572300a(28) =88438350a(29) =39209940