a(n) = Sum_{i=1..n} Sum_{j=1..i} (prime(i)^2 - prime(j)^2).

Terms

a(0) =0a(1) =5a(2) =42a(3) =151a(4) =548a(5) =1185a(6) =2542a(7) =4403a(8) =7608a(9) =13621a(10) =20834a(11) =32535a(12) =47980a(13) =65609a(14) =88278a(15) =119947a(16) =162368a(17) =208869a(18) =269194a(19) =340007a(20) =416580a(21) =512305a(22) =622286a(23) =756003a(24) =925432a(25) =1114661a(26) =1314498a(27) =1537015a(28) =1771628a(29) =2031993