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A039613
Numbers whose base-12 representation has the same nonzero number of 1's and 11's.
0
23, 133, 155, 179, 191, 203, 215, 227, 239, 251, 263, 275, 276, 278, 279, 280, 281, 282, 283, 284, 285, 286, 311, 421, 455, 565, 599, 709, 743, 853, 887, 997, 1031, 1141, 1175, 1285, 1319, 1429, 1463, 1573, 1585, 1596, 1598, 1599, 1600, 1601
OFFSET
1,1
MATHEMATICA
Select[Range[2000], DigitCount[#, 12, 1]==DigitCount[#, 12, 11]>0&] (* Harvey P. Dale, Mar 03 2020 *)
CROSSREFS
Sequence in context: A217496 A141963 A157907 * A009482 A191745 A260842
KEYWORD
nonn,base,easy
STATUS
approved