A045253 Numbers whose base-5 representation contains exactly one 1 and two 4's.

49, 109, 121, 149, 199, 224, 229, 239, 244, 245, 247, 248, 299, 359, 371, 424, 484, 496, 509, 521, 529, 539, 544, 545, 547, 548, 559, 571, 584, 596, 601, 605, 607, 608, 611, 616, 649, 699, 724, 729, 739, 744, 745, 747, 748, 899

Offset

1,1

Links

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

Mathematica

Select[Range[1000], DigitCount[#, 5, 1]==1&&DigitCount[#, 5, 4]==2&] (* Harvey P. Dale, Apr 11 2020 *)

Crossrefs

Cf. A007091.

Sequence in context: A228878 A067673 A250653 * A088868 A373734 A044236

Adjacent sequences: A045250 A045251 A045252 * A045254 A045255 A045256

Keyword

nonn,base

Author

Clark Kimberling

Status

approved