a(n) = 279841*n^2 - 394634*n + 139128.

Terms

a(0) =24335a(1) =469224a(2) =1473795a(3) =3038048a(4) =5161983a(5) =7845600a(6) =11088899a(7) =14891880a(8) =19254543a(9) =24176888a(10) =29658915a(11) =35700624a(12) =42302015a(13) =49463088a(14) =57183843a(15) =65464280a(16) =74304399a(17) =83704200a(18) =93663683a(19) =104182848a(20) =115261695a(21) =126900224a(22) =139098435a(23) =151856328a(24) =165173903a(25) =179051160a(26) =193488099