Number of edges in 12-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) =45a(11) =55a(12) =66a(13) =77a(14) =89a(15) =102a(16) =116a(17) =131a(18) =147a(19) =164a(20) =182a(21) =201a(22) =221a(23) =242a(24) =264a(25) =286a(26) =309a(27) =333a(28) =358a(29) =384