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Numbers that can be expressed as the product of two 2-digit numbers in at least one way.
2

%I #14 Jul 18 2020 17:14:57

%S 100,110,120,121,130,132,140,143,144,150,154,156,160,165,168,169,170,

%T 176,180,182,187,190,192,195,196,198,200,204,208,209,210,216,220,221,

%U 224,225,228,230,231,234,238,240,242,247,250,252,253,255,256,260,264,266

%N Numbers that can be expressed as the product of two 2-digit numbers in at least one way.

%C Last term is 9801 = 99*99.

%C There are 2,621 terms in the sequence, all of which are in the b-file. - _Harvey P. Dale_, Jun 14 2017

%H Harvey P. Dale, <a href="/A033828/b033828.txt">Table of n, a(n) for n = 1..2621</a>

%t Times@@@Tuples[Range[10,99],2]//Union (* _Harvey P. Dale_, Jun 14 2017 *)

%K nonn,fini,full

%O 1,1

%A _Jeff Burch_

%E More terms from _Harvey P. Dale_, Jun 14 2017