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A032930 Numbers whose set of base 9 digits is {1,2}. 1
1, 2, 10, 11, 19, 20, 91, 92, 100, 101, 172, 173, 181, 182, 820, 821, 829, 830, 901, 902, 910, 911, 1549, 1550, 1558, 1559, 1630, 1631, 1639, 1640, 7381, 7382, 7390, 7391, 7462, 7463, 7471, 7472, 8110, 8111, 8119, 8120, 8191 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

MATHEMATICA

Flatten[Table[FromDigits[#, 9]&/@Tuples[{1, 2}, n], {n, 5}]] (* Vincenzo Librandi, Jun 04 2012 *)

PROG

(MAGMA) [n: n in [1..9000] | Set(IntegerToSequence(n, 9)) subset {1, 2}]; // Vincenzo Librandi, Jun 04 2012

CROSSREFS

Sequence in context: A060045 A000462 A282093 * A033293 A231501 A051373

Adjacent sequences:  A032927 A032928 A032929 * A032931 A032932 A032933

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified July 23 22:27 EDT 2017. Contains 289716 sequences.