OFFSET
1,2
COMMENTS
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; };
A007814(n) = valuation(n, 2);
A009194(n) = gcd(n, sigma(n));
v336153 = rgs_transform(vector(up_to, n, Aux336153(n)));
A336153(n) = v336153[n];
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jul 11 2020
STATUS
approved