A044969 Numbers whose base-3 representation contains no 0's and exactly four 1's.

40, 122, 124, 130, 148, 202, 368, 374, 376, 392, 394, 400, 446, 448, 454, 472, 608, 610, 616, 634, 688, 1106, 1124, 1130, 1132, 1178, 1184, 1186, 1202, 1204, 1210, 1340, 1346, 1348, 1364, 1366, 1372, 1418, 1420, 1426, 1444

Offset

1,1

Links

Table of n, a(n) for n=1..41.

Mathematica

Select[Range[2000], DigitCount[#, 3, 0]==0&&DigitCount[#, 3, 1]==4&] (* Harvey P. Dale, Jun 05 2019 *)

Crossrefs

Cf. A007089.

Sequence in context: A043470 A044291 A044672 * A300536 A260536 A251137

Adjacent sequences: A044966 A044967 A044968 * A044970 A044971 A044972

Keyword

nonn,base

Author

Clark Kimberling

Status

approved