A045232 Numbers whose base-5 representation contains exactly three 1's and three 2's.

3937, 4037, 4057, 4061, 4537, 4557, 4561, 4657, 4661, 4681, 7037, 7057, 7061, 7157, 7161, 7181, 7657, 7661, 7681, 7781, 16437, 16537, 16557, 16561, 17037, 17057, 17061, 17157, 17161, 17181, 18937, 19037, 19057, 19061

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..5000

Mathematica

Select[Range[20000], DigitCount[#, 5, 1]==DigitCount[#, 5, 2]==3&] (* Harvey P. Dale, Oct 14 2020 *)

Crossrefs

Cf. A007091.

Sequence in context: A288894 A289563 A198641 * A252455 A233688 A162859

Adjacent sequences: A045229 A045230 A045231 * A045233 A045234 A045235

Keyword

nonn,base

Author

Clark Kimberling

Status

approved