OFFSET
1,1
FORMULA
a(n) ~ phi*n*log n, where phi = (1+sqrt(5))/2. - Charles R Greathouse IV, Apr 19 2015
PROG
(PARI) a(n) = prime(n*(1+sqrt(5))\2); \\ Michel Marcus, Aug 28 2013
(Python)
from math import isqrt
from sympy import prime
def A109652(n): return prime(n+isqrt(5*n**2)>>1) # Chai Wah Wu, Aug 10 2022
CROSSREFS
KEYWORD
nonn,less
AUTHOR
E.J.P. Vening, Aug 05 2005
EXTENSIONS
Better description from Joseph Biberstine and Graeme McRae, Aug 05 2006
STATUS
approved