OFFSET
1
LINKS
FORMULA
EXAMPLE
15 = 3*5 is an odd semiprime, thus a(15) = 1.
121 = 11*11 is an odd semiprime, thus a(121) = 1.
PROG
(PARI) A353480(n) = ((2==bigomega(n)) && (1==(n%2)));
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Apr 22 2022
STATUS
approved