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A045262 Numbers whose base-5 representation contains exactly three 1's and three 4's. 0
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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
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
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)