Integer part of 5th root of product of first n primes.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =4a(5) =7a(6) =13a(7) =24a(8) =46a(9) =91a(10) =182a(11) =375a(12) =788a(13) =1672a(14) =3612a(15) =7991a(16) =18062a(17) =41100a(18) =95294a(19) =223520a(20) =527208a(21) =1263303a(22) =3057195a(23) =7502417a(24) =18730768a(25) =47143287a(26) =119120718a(27) =303294169a(28) =775085050a(29) =1995101748