A045262 Numbers whose base-5 representation contains exactly three 1's and three 4's.

3999, 4299, 4359, 4371, 5799, 5859, 5871, 6159, 6171, 6231, 13299, 13359, 13371, 13659, 13671, 13731, 15159, 15171, 15231, 15531, 16499, 16799, 16859, 16871, 18299, 18359, 18371, 18659, 18671, 18731, 18999, 19299

Offset

1,1

Links

Table of n, a(n) for n=1..32.

Mathematica

okQ[n_]:=Module[{dcn5=DigitCount[n, 5]}, dcn5[[1]]==dcn5[[4]]==3]
Select[Range[20000], okQ]  (* Harvey P. Dale, Feb 18 2011 *)

Crossrefs

Cf. A007091.

Sequence in context: A200848 A235739 A236079 * A203088 A061700 A218641

Adjacent sequences: A045259 A045260 A045261 * A045263 A045264 A045265

Keyword

nonn,base

Author

Clark Kimberling

Status

approved