Apply partial sum operator twice to sequence of squares of the first n primes.

Terms

a(0) =4a(1) =17a(2) =55a(3) =142a(4) =350a(5) =727a(6) =1393a(7) =2420a(8) =3976a(9) =6373a(10) =9731a(11) =14458a(12) =20866a(13) =29123a(14) =39589a(15) =52864a(16) =69620a(17) =90097a(18) =115063a(19) =145070a(20) =180406a(21) =221983a(22) =270449a(23) =326836a(24) =392632a(25) =468629a(26) =555235a(27) =653290a(28) =763226a(29) =885931