A033828 Numbers that can be expressed as the product of two 2-digit numbers in at least one way.

100, 110, 120, 121, 130, 132, 140, 143, 144, 150, 154, 156, 160, 165, 168, 169, 170, 176, 180, 182, 187, 190, 192, 195, 196, 198, 200, 204, 208, 209, 210, 216, 220, 221, 224, 225, 228, 230, 231, 234, 238, 240, 242, 247, 250, 252, 253, 255, 256, 260, 264, 266

Offset

1,1

Comments

Last term is 9801 = 99*99.

There are 2,621 terms in the sequence, all of which are in the b-file. - Harvey P. Dale, Jun 14 2017

Links

Harvey P. Dale, Table of n, a(n) for n = 1..2621

Mathematica

Times@@@Tuples[Range[10, 99], 2]//Union (* Harvey P. Dale, Jun 14 2017 *)

Crossrefs

Sequence in context: A135603 A044866 A290948 * A348139 A162530 A204590

Adjacent sequences: A033825 A033826 A033827 * A033829 A033830 A033831

Keyword

nonn,fini,full

Author

Jeff Burch

Extensions

More terms from Harvey P. Dale, Jun 14 2017

Status

approved