Number of edges in 9-partite Turán graph of order n.

Terms

a(0) =0a(1) =0a(2) =1a(3) =3a(4) =6a(5) =10a(6) =15a(7) =21a(8) =28a(9) =36a(10) =44a(11) =53a(12) =63a(13) =74a(14) =86a(15) =99a(16) =113a(17) =128a(18) =144a(19) =160a(20) =177a(21) =195a(22) =214a(23) =234a(24) =255a(25) =277a(26) =300a(27) =324a(28) =348a(29) =373