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A372786 a(n) = tau(6*n) = A000005(6*n). 10
4, 6, 6, 8, 8, 9, 8, 10, 8, 12, 8, 12, 8, 12, 12, 12, 8, 12, 8, 16, 12, 12, 8, 15, 12, 12, 10, 16, 8, 18, 8, 14, 12, 12, 16, 16, 8, 12, 12, 20, 8, 18, 8, 16, 16, 12, 8, 18, 12, 18, 12, 16, 8, 15, 16, 20, 12, 12, 8, 24, 8, 12, 16, 16, 16, 18, 8, 16, 12, 24, 8, 20 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
Sum_{k=1..n} a(k) ~ (15*n*(log(n) + 2*gamma - 1) + n*(5*log(2) + 3*log(3))) / 6, where gamma is the Euler-Mascheroni constant A001620.
MATHEMATICA
Table[DivisorSigma[0, 6*n], {n, 1, 150}]
CROSSREFS
Cf. A224613.
Sequence in context: A074672 A070259 A111653 * A228363 A334289 A173395
KEYWORD
nonn
AUTHOR
Vaclav Kotesovec, May 13 2024
STATUS
approved

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Last modified June 21 02:54 EDT 2024. Contains 373535 sequences. (Running on oeis4.)