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A045036
Numbers whose base-4 representation contains exactly four 0's and three 1's.
0
4101, 4113, 4116, 4161, 4164, 4176, 4353, 4356, 4368, 4416, 5121, 5124, 5136, 5184, 5376, 16406, 16407, 16409, 16413, 16421, 16437, 16454, 16455, 16457, 16461, 16466, 16467, 16472, 16476, 16481, 16484, 16497, 16500
OFFSET
1,1
MATHEMATICA
Select[Range[20000], DigitCount[#, 4, 0]==4&&DigitCount[#, 4, 1]==3&] (* Harvey P. Dale, Jan 28 2012 *)
CROSSREFS
Cf. A007090.
Sequence in context: A346327 A043476 A168191 * A345619 A346337 A345634
KEYWORD
nonn,base
STATUS
approved