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A138394 Smallest number with a(n) divisors is in A134865. 3
1, 2, 3, 4, 6, 8, 9, 10, 16, 20, 24, 30, 48, 60, 64, 72, 80, 84, 100, 108, 126, 162, 189, 192, 224, 384, 448, 512, 576, 672, 11520 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The indices of elements of A005179 that belong to A134865. Sorted version of the sequence A140752. - Max Alekseyev, May 26 2008

LINKS

Table of n, a(n) for n=1..31.

FORMULA

a(n) = A000005(A140753(n)) - Max Alekseyev, May 26 2008

EXAMPLE

8 is in this sequence because the smallest number with 8 divisors (24) is a member of A134865.

CROSSREFS

Cf. A000005, A005179, A134865, A140752, A140753.

Sequence in context: A080823 A117925 A135571 * A140752 A246780 A321131

Adjacent sequences:  A138391 A138392 A138393 * A138395 A138396 A138397

KEYWORD

more,nonn

AUTHOR

J. Lowell, May 08 2008

EXTENSIONS

a(31)=11520 from Ray Chandler, Jun 30 2008

STATUS

approved

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Last modified February 19 13:20 EST 2020. Contains 332044 sequences. (Running on oeis4.)