OFFSET
0,4
LINKS
Antti Karttunen, Table of n, a(n) for n = 0..65537
FORMULA
PROG
(PARI)
up_to = 65537;
A005940(n) = { my(p=2, t=1); n--; until(!n\=2, if((n%2), (t*=p), p=nextprime(p+1))); (t); };
A003415(n) = if(n<=1, 0, my(f=factor(n)); n*sum(i=1, #f~, f[i, 2]/f[i, 1]));
A368910list(up_to) = { my(v=vector(up_to), s=A368909(0)); for(i=1, up_to, s +=
A368909(i); v[i] = s); (v); };
v368910 = A368910list(up_to);
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 11 2024
STATUS
approved