A039297 Numbers whose base-6 representation has the same nonzero number of 0's and 5's.

30, 41, 66, 77, 102, 113, 138, 149, 174, 181, 182, 183, 184, 186, 192, 198, 204, 227, 233, 239, 245, 247, 248, 249, 250, 257, 282, 293, 318, 329, 354, 365, 390, 397, 398, 399, 400, 402, 408, 414, 420, 443, 449, 455, 461, 463, 464, 465, 466, 473, 498, 509

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Mathematica

ok6Q[n_]:=Module[{dc6=DigitCount[n, 6]}, dc6[[5]]==dc6[[6]]>0]; Select[Range[ 550], ok6Q]  (* Harvey P. Dale, Mar 05 2011 *)
Select[Range[600], DigitCount[#, 6, 0]==DigitCount[#, 6, 5]>0&] (* Harvey P. Dale, Mar 12 2023 *)

Crossrefs

Cf. A007092.

Sequence in context: A275193 A225049 A043120 * A043900 A103098 A110849

Adjacent sequences: A039294 A039295 A039296 * A039298 A039299 A039300

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved