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A336642
One less than the largest square dividing n: a(n) = A008833(n)-1.
4
0, 0, 0, 3, 0, 0, 0, 3, 8, 0, 0, 3, 0, 0, 0, 15, 0, 8, 0, 3, 0, 0, 0, 3, 24, 0, 8, 3, 0, 0, 0, 15, 0, 0, 0, 35, 0, 0, 0, 3, 0, 0, 0, 3, 8, 0, 0, 15, 48, 24, 0, 3, 0, 8, 0, 3, 0, 0, 0, 3, 0, 0, 8, 63, 0, 0, 0, 3, 0, 0, 0, 35, 0, 0, 24, 3, 0, 0, 0, 15, 80, 0, 0, 3, 0, 0, 0, 3, 0, 8, 0, 3, 0, 0, 0, 15, 0, 48, 8, 99, 0, 0, 0, 3, 0
OFFSET
1,4
LINKS
PROG
(PARI) A336642(n) = ((n/core(n))-1);
CROSSREFS
Cf. A008833.
Cf. also A336551, A336641, A336644.
Sequence in context: A117980 A065032 A007514 * A151671 A267502 A296605
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jul 28 2020
STATUS
approved