OFFSET
1,3
LINKS
PROG
(PARI) A336853(n) = { my(f = factor(n)); for(i=1, #f~, f[i, 1] = nextprime(f[i, 1]+1)); (factorback(f)-n); };
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Aug 09 2020
STATUS
approved