18059231232domain: NAppears in sequencesProduct of the first n digits of the Golden Ratio phi = 1.6180339... (treating 0's as if they were 1's).at n=15A084675a(0) = 1; for n>1, a(n) is the denominator of b(n) = Product_{i=1..n} (prime(i)^2 + 1)/(prime(i)^2 - 1).at n=8A285603