a(n) = 3rd elementary symmetric function of the first n+2 primes.

Terms

a(0) =30a(1) =247a(2) =1358a(3) =5102a(4) =16186a(5) =41817a(6) =98190a(7) =220628a(8) =441410a(9) =852887a(10) =1551568a(11) =2631642a(12) =4293186a(13) =6866813a(14) =10757450a(15) =16151192a(16) =23873746a(17) =34440605a(18) =48249066a(19) =66877582a(20) =91117898a(21) =122953643a(22) =165196270a(23) =218615372a(24) =284119458a(25) =364962773a(26) =462059210a(27) =579605426a(28) =732954370