A032809 Numbers whose set of base-9 digits is {2,3}.

2, 3, 20, 21, 29, 30, 182, 183, 191, 192, 263, 264, 272, 273, 1640, 1641, 1649, 1650, 1721, 1722, 1730, 1731, 2369, 2370, 2378, 2379, 2450, 2451, 2459, 2460, 14762, 14763, 14771, 14772, 14843, 14844, 14852, 14853, 15491, 15492

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Index entries for 3-automatic sequences.

Mathematica

Flatten[Table[FromDigits[#, 9]&/@Tuples[{2, 3}, n], {n, 9}]] (* Vincenzo Librandi, May 27 2012 *)

Prog

(Magma) [n: n in [1..16000] | Set(IntegerToSequence(n, 9)) subset {2, 3}]; // Vincenzo Librandi, May 27 2012

Crossrefs

Sequence in context: A028425 A224987 A024630 * A279180 A279471 A042265

Adjacent sequences: A032806 A032807 A032808 * A032810 A032811 A032812

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved