A045022 Numbers whose base-4 representation contains exactly one 0 and four 1's.

277, 325, 337, 340, 1110, 1111, 1113, 1117, 1125, 1141, 1173, 1237, 1302, 1303, 1305, 1309, 1317, 1333, 1350, 1351, 1353, 1357, 1362, 1363, 1368, 1372, 1377, 1380, 1393, 1396, 1413, 1425, 1428, 1477, 1489, 1492, 1557

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Mathematica

Select[Range[10000], DigitCount[#, 4, 0] == 1 && DigitCount[#, 4, 1] == 4 &] (* Vincenzo Librandi, Sep 21 2016 *)

Crossrefs

Cf. A007090.

Sequence in context: A297755 A166192 A186466 * A108253 A108255 A152715

Adjacent sequences: A045019 A045020 A045021 * A045023 A045024 A045025

Keyword

nonn,base

Author

Clark Kimberling

Status

approved