A039450 Numbers whose base-11 representation has the same nonzero number of 1's and 4's.

15, 45, 125, 147, 158, 165, 167, 168, 170, 171, 172, 173, 174, 175, 180, 191, 202, 213, 224, 235, 257, 287, 378, 408, 485, 495, 497, 498, 500, 501, 502, 503, 504, 505, 507, 518, 540, 551, 562, 573, 584, 595, 620, 650, 741, 771, 862, 892, 983, 1013

Offset

1,1

Links

Table of n, a(n) for n=1..50.

Mathematica

Select[Range[1100], DigitCount[#, 11, 1]==DigitCount[#, 11, 4]>0&] (* Harvey P. Dale, Jan 15 2019 *)

Crossrefs

Sequence in context: A126228 A072251 A002756 * A127069 A346853 A241731

Adjacent sequences: A039447 A039448 A039449 * A039451 A039452 A039453

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved