A045075 Numbers whose base-4 representation contains exactly two 0's and four 3's.

3135, 3279, 3315, 3324, 3855, 3891, 3900, 4035, 4044, 4080, 4351, 4927, 5071, 5107, 5116, 7231, 7375, 7411, 7420, 7951, 7987, 7996, 8131, 8140, 8176, 8447, 9023, 9167, 9203, 9212, 11327, 11471, 11507, 11516, 12047

Offset

1,1

Links

Table of n, a(n) for n=1..35.

Mathematica

Select[Range[15000], DigitCount[#, 4, 0]==2&&DigitCount[#, 4, 3]==4&] (* Harvey P. Dale, Jan 16 2015 *)

Crossrefs

Cf. A007090.

Sequence in context: A218160 A045172 A131276 * A071143 A284984 A061048

Adjacent sequences: A045072 A045073 A045074 * A045076 A045077 A045078

Keyword

nonn,base

Author

Clark Kimberling

Status

approved