OFFSET
0,4
LINKS
Max Alekseyev, Table of n, a(n) for n = 0..561
FORMULA
a(n) = A046799(2*n). - Max Alekseyev, Jan 08 2024
MATHEMATICA
PrimeNu[4^Range[0, 100]+1] (* Paolo Xausa, Oct 14 2023 *)
PROG
(PARI) for(n = 0, 100, print1(omega(4^n + 1), ", "))
(Python)
from sympy import primenu
def A366605(n): return primenu((1<<(n<<1))+1) # Chai Wah Wu, Oct 14 2023
CROSSREFS
KEYWORD
nonn
AUTHOR
Sean A. Irvine, Oct 14 2023
STATUS
approved