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A043677
Numbers whose base-16 representation has exactly 4 runs.
0
4112, 4114, 4115, 4116, 4117, 4118, 4119, 4120, 4121, 4122, 4123, 4124, 4125, 4126, 4127, 4128, 4129, 4131, 4132, 4133, 4134, 4135, 4136, 4137, 4138, 4139, 4140, 4141, 4142, 4143, 4144, 4145, 4146, 4148, 4149, 4150
OFFSET
1,1
MATHEMATICA
Select[Range[4200], Length[Split[IntegerDigits[#, 16]]]==4&] (* Harvey P. Dale, Aug 03 2020 *)
CROSSREFS
Sequence in context: A031828 A205581 A061325 * A168462 A045032 A196896
KEYWORD
nonn,base
STATUS
approved