a(n) = Sum_{i=n..n+1} Sum_{j=i+1..n+2} Sum_{k=j+1..n+3} prime(i)*prime(j)*prime(k).

Terms

a(0) =247a(1) =886a(2) =2556a(3) =6288a(4) =12900a(5) =22392a(6) =40808a(7) =63978a(8) =105000a(9) =161142a(10) =216232a(11) =294168a(12) =385544a(13) =507782a(14) =658820a(15) =858000a(16) =1067502a(17) =1251952a(18) =1518910a(19) =1783854a(20) =2114748a(21) =2618148a(22) =3147710a(23) =3696090a(24) =4239528a(25) =4626300a(26) =5033232a(27) =5898936a(28) =6871200