A045259 Numbers whose base-5 representation contains exactly three 1's and no 4's.

31, 131, 151, 155, 157, 158, 161, 166, 181, 206, 281, 406, 631, 651, 655, 657, 658, 661, 666, 681, 706, 751, 755, 757, 758, 761, 766, 775, 777, 778, 785, 787, 788, 790, 792, 793, 801, 805, 807, 808, 811, 816, 826, 830, 832, 833

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Mathematica

Select[Range[1000], DigitCount[#, 5, 1]==3&&DigitCount[#, 5, 4]==0&] (* Harvey P. Dale, Apr 05 2015 *)

Crossrefs

Cf. A007091.

Sequence in context: A183838 A043355 A023728 * A045244 A045229 A038475

Adjacent sequences: A045256 A045257 A045258 * A045260 A045261 A045262

Keyword

nonn,base

Author

Clark Kimberling

Status

approved