Diagonal sums of correlation triangle for floor((n+2)/2).

Terms

a(0) =1a(1) =1a(2) =3a(3) =4a(4) =8a(5) =10a(6) =17a(7) =21a(8) =32a(9) =39a(10) =55a(11) =66a(12) =89a(13) =105a(14) =136a(15) =159a(16) =200a(17) =231a(18) =284a(19) =325a(20) =392a(21) =445a(22) =528a(23) =595a(24) =697a(25) =780a(26) =903a(27) =1005a(28) =1152a(29) =1275