Nearest integer to the product of all integer roots of n from the second to the n-th.

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =8a(5) =13a(6) =22a(7) =36a(8) =56a(9) =85a(10) =127a(11) =186a(12) =268a(13) =381a(14) =533a(15) =736a(16) =1004a(17) =1355a(18) =1811a(19) =2397a(20) =3146a(21) =4095a(22) =5289a(23) =6783a(24) =8641a(25) =10938a(26) =13763a(27) =17222a(28) =21435a(29) =26544