Partial sums of round(n^2/8).

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =4a(5) =7a(6) =12a(7) =18a(8) =26a(9) =36a(10) =49a(11) =64a(12) =82a(13) =103a(14) =128a(15) =156a(16) =188a(17) =224a(18) =265a(19) =310a(20) =360a(21) =415a(22) =476a(23) =542a(24) =614a(25) =692a(26) =777a(27) =868a(28) =966a(29) =1071