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A175719 a(1) = 1, for n >= 2, a(n) = the smallest number m with (a(n-1) + 3) divisors. 2
1, 6, 36, 36864 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..4.

FORMULA

A000005(a(n)) = a(n-1) + 3 for n >= 2.

EXAMPLE

a(3) = 36 = the smallest number with 6 + 3 = 9 divisors.

CROSSREFS

Cf. A014221, A175718, A175720.

Sequence in context: A202781 A067213 A173604 * A277726 A003351 A129651

Adjacent sequences:  A175716 A175717 A175718 * A175720 A175721 A175722

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Aug 15 2010

STATUS

approved

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Last modified June 19 03:31 EDT 2021. Contains 345125 sequences. (Running on oeis4.)