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A338714 Number of numbers of the form i*n with 1 <= i <= n and tau(i*n) = 6. 2
0, 0, 0, 1, 1, 2, 1, 1, 3, 2, 2, 1, 2, 2, 2, 1, 2, 1, 2, 1, 2, 2, 2, 0, 8, 2, 1, 1, 3, 0, 3, 1, 2, 2, 2, 0, 3, 2, 2, 0, 3, 0, 3, 1, 1, 2, 3, 0, 14, 1, 2, 1, 4, 0, 2, 0, 2, 2, 4, 0, 4, 2, 1, 0, 2, 0, 4, 1, 2, 0, 4, 0, 4, 2, 1, 1, 2, 0, 4, 0, 1, 2, 4, 0, 2, 2, 2, 0, 4, 0, 2, 1, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..10000

PROG

(PARI) a(n) = sum(i=1, n, numdiv(i*n)==6); \\ Michel Marcus, Nov 11 2020

CROSSREFS

tau is A000005.

For tau(i*n) = 2, 3, 4, see A010051, A296084, A338713.

Inspired by A333995.

Sequence in context: A340581 A345116 A278042 * A211161 A208101 A131333

Adjacent sequences:  A338711 A338712 A338713 * A338715 A338716 A338717

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 11 2020

STATUS

approved

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Last modified June 14 09:06 EDT 2021. Contains 345018 sequences. (Running on oeis4.)