Integer part of 7th root of product of first n primes.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =6a(7) =9a(8) =15a(9) =25a(10) =41a(11) =68a(12) =117a(13) =200a(14) =347a(15) =613a(16) =1097a(17) =1975a(18) =3601a(19) =6621a(20) =12221a(21) =22814a(22) =42891a(23) =81443a(24) =156560a(25) =302701a(26) =586897a(27) =1144127a(28) =2236326a(29) =4393717