A045073 Numbers whose base-4 representation contains exactly two 0's and two 3's.

195, 204, 240, 271, 307, 316, 451, 460, 496, 527, 563, 572, 707, 716, 752, 775, 779, 781, 782, 787, 796, 803, 812, 817, 818, 820, 824, 835, 844, 880, 899, 908, 944, 961, 962, 964, 968, 976, 992, 1055, 1071, 1079, 1083, 1085

Offset

1,1

Links

Table of n, a(n) for n=1..44.

Mathematica

Select[Range[1200], DigitCount[#, 4, 0]== DigitCount[#, 4, 3]==2&]  (* Harvey P. Dale, Mar 13 2011 *)

Crossrefs

Cf. A007090.

Sequence in context: A333875 A183583 A296893 * A204811 A234814 A154938

Adjacent sequences: A045070 A045071 A045072 * A045074 A045075 A045076

Keyword

nonn,base

Author

Clark Kimberling

Status

approved