Least k for which the integers Floor(k/(m*(m+1))) for m=1,2,...,n are distinct.

Terms

a(0) =1a(1) =2a(2) =6a(3) =12a(4) =24a(5) =40a(6) =90a(7) =126a(8) =168a(9) =288a(10) =360a(11) =450a(12) =660a(13) =792a(14) =936a(15) =1274a(16) =1470a(17) =1680a(18) =2176a(19) =2448a(20) =2754a(21) =3420a(22) =3800a(23) =4620a(24) =5082a(25) =5566a(26) =6624a(27) =7200a(28) =7800a(29) =9126