A043348 Numbers having four 3's in base 4.

255, 511, 767, 831, 895, 959, 975, 991, 1007, 1011, 1015, 1019, 1020, 1021, 1022, 1279, 1535, 1791, 1855, 1919, 1983, 1999, 2015, 2031, 2035, 2039, 2043, 2044, 2045, 2046, 2303, 2559, 2815, 2879, 2943, 3007, 3023, 3039

Offset

1,1

Links

Table of n, a(n) for n=1..38.

Mathematica

Select[Range[3100], DigitCount[#, 4, 3]==4&] (* Harvey P. Dale, Jun 09 2017 *)

Crossrefs

Cf. A007090.

Sequence in context: A182221 A053339 A031197 * A031469 A045065 A158250

Adjacent sequences: A043345 A043346 A043347 * A043349 A043350 A043351

Keyword

nonn,base

Author

Clark Kimberling

Status

approved