A045085 Numbers whose base-4 representation contains exactly four 0's and four 3's.

49215, 49359, 49395, 49404, 49935, 49971, 49980, 50115, 50124, 50160, 52239, 52275, 52284, 52419, 52428, 52464, 52995, 53004, 53040, 53184, 61455, 61491, 61500, 61635, 61644, 61680, 62211, 62220, 62256, 62400

Offset

1,1

Links

Table of n, a(n) for n=1..30.

Mathematica

Select[Range[65000], DigitCount[#, 4, 0]==DigitCount[#, 4, 3]==4&] (* Harvey P. Dale, May 02 2014 *)

Crossrefs

Cf. A007090.

Sequence in context: A079400 A205625 A205360 * A304020 A305696 A184663

Adjacent sequences: A045082 A045083 A045084 * A045086 A045087 A045088

Keyword

nonn,base

Author

Clark Kimberling

Status

approved