Sum of next n composite numbers.

Terms

a(0) =4a(1) =14a(2) =31a(3) =63a(4) =112a(5) =176a(6) =264a(7) =385a(8) =529a(9) =712a(10) =932a(11) =1184a(12) =1503a(13) =1833a(14) =2234a(15) =2689a(16) =3207a(17) =3779a(18) =4408a(19) =5117a(20) =5913a(21) =6747a(22) =7657a(23) =8667a(24) =9766a(25) =10938a(26) =12240a(27) =13612a(28) =15071a(29) =16578