Numbers n such that the sum of the first n primes is divisible by n + 1.

Terms

a(0) =1a(1) =9a(2) =13a(3) =26a(4) =37a(5) =222a(6) =574a(7) =1405a(8) =1567a(9) =4380a(10) =6821a(11) =7248a(12) =27481a(13) =28067a(14) =68826a(15) =87471a(16) =1223877a(17) =3673808a(18) =8143207a(19) =13245065a(20) =16237421a(21) =46410995a(22) =83214449a(23) =127319479a(24) =145085056a(25) =183943755a(26) =1881387895a(27) =3896341197a(28) =4009536763a(29) =4220428005