Number of ordered triples (i,j,k) with i*j*k <= n and i,j,k >= 0.

Terms

a(0) =1a(1) =8a(2) =23a(3) =44a(4) =74a(5) =107a(6) =152a(7) =197a(8) =255a(9) =315a(10) =384a(11) =453a(12) =543a(13) =624a(14) =717a(15) =816a(16) =927a(17) =1032a(18) =1158a(19) =1275a(20) =1413a(21) =1548a(22) =1689a(23) =1830a(24) =2004a(25) =2160a(26) =2325a(27) =2497a(28) =2683a(29) =2860