Sum of the areas of all r X s rectangles such that r + s = 2n, with r, s composite.

Terms

a(0) =0a(1) =0a(2) =0a(3) =16a(4) =24a(5) =68a(6) =88a(7) =172a(8) =289a(9) =344a(10) =400a(11) =735a(12) =680a(13) =956a(14) =1478a(15) =1428a(16) =1793a(17) =2590a(18) =2208a(19) =3159a(20) =4143a(21) =4015a(22) =4485a(23) =6209a(24) =6254a(25) =6763a(26) =8860a(27) =8327a(28) =9274a(29) =13043