A044983 Numbers whose base-3 representation contains exactly three 0's and three 1's.

247, 253, 255, 271, 273, 279, 325, 327, 333, 351, 743, 745, 751, 761, 763, 767, 771, 775, 777, 787, 793, 795, 815, 817, 821, 825, 829, 831, 839, 843, 855, 865, 867, 873, 895, 901, 903, 919, 921, 927, 977, 979, 983, 987, 991

Offset

1,1

Links

Table of n, a(n) for n=1..45.

Mathematica

Select[Range[2000], DigitCount[#, 3, 1] == DigitCount[#, 3, 0] == 3&] (* Harvey P. Dale, Jan 07 2011 *)

Crossrefs

Cf. A007089.

Sequence in context: A251516 A208188 A177212 * A351243 A175043 A051977

Adjacent sequences: A044980 A044981 A044982 * A044984 A044985 A044986

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved