OFFSET
0,4
LINKS
FORMULA
PROG
(PARI)
A019565(n) = { my(m=1, p=1); while(n>0, p = nextprime(1+p); if(n%2, m *= p); n >>= 1); (m); };
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Dec 27 2020
STATUS
approved