A045229 Numbers whose base-5 representation contains exactly three 1's and no 2's.

31, 131, 151, 155, 158, 159, 166, 171, 206, 231, 406, 531, 631, 651, 655, 658, 659, 666, 671, 706, 731, 751, 755, 758, 759, 766, 771, 775, 778, 779, 790, 793, 794, 795, 798, 799, 826, 830, 833, 834, 841, 846, 851, 855, 858, 859

Offset

1,1

Links

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

Mathematica

Select[Range[900], DigitCount[#, 5, 1]==3&&DigitCount[#, 5, 2]==0&] (* Harvey P. Dale, Jul 25 2011 *)

Crossrefs

Cf. A007091.

Sequence in context: A023728 A045259 A045244 * A038475 A141931 A044363

Adjacent sequences: A045226 A045227 A045228 * A045230 A045231 A045232

Keyword

nonn,base

Author

Clark Kimberling

Status

approved