A045035 Numbers whose base-4 representation contains exactly four 0's and two 1's.

1025, 1028, 1040, 1088, 1280, 4102, 4103, 4105, 4109, 4114, 4115, 4120, 4124, 4129, 4132, 4145, 4148, 4162, 4163, 4168, 4172, 4192, 4208, 4225, 4228, 4240, 4289, 4292, 4304, 4354, 4355, 4360, 4364, 4384, 4400, 4480

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[5000], DigitCount[#, 4, 0]==4&&DigitCount[#, 4, 1]==2&] (* Harvey P. Dale, Jun 05 2014 *)

Crossrefs

Cf. A007090.

Sequence in context: A031147 A087932 A351310 * A060948 A171385 A031742

Adjacent sequences: A045032 A045033 A045034 * A045036 A045037 A045038

Keyword

nonn,base

Author

Clark Kimberling

Status

approved