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A353688
a(n) = n / A098988(n).
3
0, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 4, 1, 2, 3, 1, 1, 1, 1, 2, 1, 2, 1, 4, 1, 2, 1, 4, 1, 6, 1, 1, 3, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 4, 3, 2, 1, 4, 1, 1, 3, 2, 1, 2, 1, 8, 1, 2, 1, 12, 1, 2, 1, 1, 1, 6, 1, 2, 3, 2, 1, 1, 1, 2, 1, 4, 1, 2, 1, 2, 1, 2, 1, 4, 1, 2, 3, 4, 1, 6, 7, 4, 1, 2, 5, 4, 1, 1, 3, 1, 1, 6, 1, 2, 3
OFFSET
0,7
LINKS
PROG
(PARI)
A098988(n) = if(0==n, 1, denominator(sumdiv(n, d, ((-1)^(d+1))/d)));
A353688(n) = (n / A098988(n));
CROSSREFS
Cf. A098988.
Sequence in context: A304750 A104306 A074389 * A353666 A051119 A159269
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 06 2022
STATUS
approved