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A039012
Numbers whose base-5 representation has the same number of 1's and 4's.
1
0, 2, 3, 9, 10, 12, 13, 15, 17, 18, 21, 29, 39, 44, 45, 47, 48, 50, 52, 53, 59, 60, 62, 63, 65, 67, 68, 71, 75, 77, 78, 84, 85, 87, 88, 90, 92, 93, 96, 101, 105, 107, 108, 111, 116, 129, 139, 144, 145, 147, 148, 174, 179, 189, 194, 195, 197, 198, 204, 214, 219, 220
OFFSET
1,2
LINKS
MATHEMATICA
Select[Range[0, 250], DigitCount[#, 5, 1]==DigitCount[#, 5, 4]&] (* Harvey P. Dale, Jul 14 2022 *)
CROSSREFS
Cf. A007091.
Sequence in context: A376200 A291610 A285428 * A291924 A357353 A214433
KEYWORD
nonn,base,easy
STATUS
approved