A033830 - OEIS

A033830

Numbers that can be expressed as the product of three 2-digit numbers.

1000, 1100, 1200, 1210, 1300, 1320, 1331, 1400, 1430, 1440, 1452, 1500, 1540, 1560, 1573, 1584, 1600, 1650, 1680, 1690, 1694, 1700, 1716, 1728, 1760, 1800, 1815, 1820, 1848, 1859, 1870, 1872, 1900, 1920, 1936, 1950, 1960, 1980, 2000, 2002, 2016, 2028, 2040

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Last term is 970299 = 99*99*99.

LINKS

Sean A. Irvine, Table of n, a(n) for n = 1..42730

MATHEMATICA

Take[Union[Times@@@Tuples[Range[10, 99], 3]], 50] (* Harvey P. Dale, Jan 23 2015 *)

PROG

(PARI) listall()=my(v=List()); for(a=10, 99, for(b=a, 99, for(c=b, 99, listput(v, a*b*c)))); Set(v) \\ Charles R Greathouse IV, Oct 22 2014

CROSSREFS