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A359635
a(n) = A162657(n)/n.
1
1, 1, 1, 1, 1, 3, 1, 1, 1, 2, 1, 4, 1, 8, 3, 1, 1, 26, 1, 24, 1, 4, 1, 3, 1, 2, 1, 7, 1, 6, 1, 1, 3, 2, 1, 1, 1, 4, 1, 2, 1, 32, 1, 4, 18, 8, 1, 4, 1, 1, 9, 2, 1, 3, 1, 8, 1, 2, 1, 156, 1, 32, 1, 1, 1, 312, 1, 2, 3, 14, 1, 26, 1, 2, 1, 4, 1, 8, 1, 2, 1, 2, 1, 21, 1, 4, 3, 4, 1, 792
OFFSET
1,6
COMMENTS
A162657(n) is the least k such that denominator(sigma(k)/k) = n, so it is divisible by n.
LINKS
PROG
(PARI) a(n) = my(k=1); while (denominator(sigma(k)/k) != n, k++); k/n;
CROSSREFS
Cf. A162657.
Sequence in context: A100808 A010277 A344764 * A065372 A015137 A368202
KEYWORD
nonn
AUTHOR
Michel Marcus, Jan 09 2023
STATUS
approved