

A087700


a(1) = 1, a(n) = smallest number such that the nth partial concatenation has n divisors.


1




OFFSET

1,3


COMMENTS

Next term is about 6.4*10^150 and is too large to include.  David Wasserman, Jun 16 2005


LINKS

Table of n, a(n) for n=1..6.


EXAMPLE

1,11,11449,114491, etc. have 1, 2, 3 and 4 divisors respectively.
11449= 107^2, 114491 = 13*8807.


CROSSREFS

Sequence in context: A229370 A174154 A071104 * A107666 A020466 A142420
Adjacent sequences: A087697 A087698 A087699 * A087701 A087702 A087703


KEYWORD

base,easy,nonn


AUTHOR

Amarnath Murthy, Sep 26 2003


EXTENSIONS

One more term from David Wasserman, Jun 16 2005


STATUS

approved



