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A275479
Least positive k such that d(n) divides d(n+k) (d = A000005).
2
1, 1, 2, 5, 1, 2, 1, 2, 3, 4, 1, 6, 1, 1, 6, 32, 1, 2, 1, 8, 1, 2, 1, 6, 3, 1, 3, 4, 1, 10, 1, 12, 1, 1, 3, 64, 1, 1, 1, 2, 1, 12, 1, 1, 5, 5, 1, 32, 1, 2, 3, 8, 1, 2, 1, 10, 1, 2, 1, 12, 1, 3, 5, 128, 1, 4, 1, 4, 1, 8, 1, 12, 1, 3, 1, 8, 1, 10, 1, 32, 31, 2, 1, 6, 1, 1, 1, 14, 1, 6, 2, 4, 1, 1, 1, 12, 1, 1, 9, 80
OFFSET
1,3
COMMENTS
a(A057922(n)) = 1. - Michel Marcus, Aug 01 2016
LINKS
EXAMPLE
a(10) = 4 because A000005(10) divides A000005(10+4).
PROG
(PARI) a(n) = {my(k = 1); while(numdiv(n+k) % numdiv(n) != 0, k++); k; }
CROSSREFS
KEYWORD
nonn
AUTHOR
Altug Alkan, Jul 29 2016
EXTENSIONS
Data section extended up to a(100) by Antti Karttunen, Mar 02 2023
STATUS
approved