Numbers k such that prime(k) divides primorial(j) + 1 for exactly three integers j.

Terms

a(0) =436a(1) =2753a(2) =13396a(3) =19960a(4) =24293a(5) =26157a(6) =58492a(7) =58723a(8) =61935a(9) =121992a(10) =136592a(11) =145803a(12) =149027a(13) =159752a(14) =179811a(15) =180776a(16) =184575a(17) =194499a(18) =262321a(19) =268645a(20) =280911a(21) =315198a(22) =327876a(23) =339951a(24) =364307a(25) =390394a(26) =413010a(27) =433626a(28) =444744a(29) =492661