a(n) = 576*n^2 + 2*n.

Terms

a(0) =578a(1) =2308a(2) =5190a(3) =9224a(4) =14410a(5) =20748a(6) =28238a(7) =36880a(8) =46674a(9) =57620a(10) =69718a(11) =82968a(12) =97370a(13) =112924a(14) =129630a(15) =147488a(16) =166498a(17) =186660a(18) =207974a(19) =230440a(20) =254058a(21) =278828a(22) =304750a(23) =331824a(24) =360050a(25) =389428a(26) =419958a(27) =451640a(28) =484474a(29) =518460