Total area of all trapezoids with bases p+q, q-p and height p*q with p,q prime, n = p+q and p < q.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =18a(5) =0a(6) =50a(7) =75a(8) =98a(9) =147a(10) =0a(11) =245a(12) =242a(13) =363a(14) =338a(15) =1112a(16) =0a(17) =1692a(18) =578a(19) =2050a(20) =722a(21) =2528a(22) =0a(23) =5687a(24) =1058a(25) =4114a(26) =0a(27) =5824a(28) =0a(29) =11431