OFFSET
1,2
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..65537
PROG
(PARI)
up_to = 65537;
rgs_transform(invec) = { my(om = Map(), outvec = vector(length(invec)), u=1); for(i=1, length(invec), if(mapisdefined(om, invec[i]), my(pp = mapget(om, invec[i])); outvec[i] = outvec[pp] , mapput(om, invec[i], i); outvec[i] = u; u++ )); outvec; };
A048250(n) = factorback(apply(p -> p+1, factor(n)[, 1]));
A325381(n) = v325381[n];
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Antti Karttunen, May 08 2019
STATUS
approved