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A037081 In ternary expansion of n, reading from left to right, successive runs of the digits occur in order ...,0,1,2,0,1,2,... +0
4
0, 1, 2, 4, 5, 6, 8, 13, 14, 15, 17, 18, 19, 24, 26, 40, 41, 42, 44, 45, 46, 51, 53, 54, 55, 58, 59, 72, 73, 78, 80, 121, 122, 123, 125, 126, 127, 132, 134, 135, 136, 139, 140, 153, 154, 159, 161, 162, 163, 166, 167, 175, 176, 177, 179, 216, 217, 220, 221, 234, 235 (list; graph; listen)
OFFSET

0,3

EXAMPLE

For example, any number whose ternary expansion is 11..122..200..011..11 passes the test.

CROSSREFS

Cf. A037078-A037080.

Sequence in context: A081354 A119792 A085834 this_sequence A110277 A104704 A072726

Adjacent sequences: A037078 A037079 A037080 this_sequence A037082 A037083 A037084

KEYWORD

nonn,base,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Erich Friedman (erich.friedman(AT)stetson.edu)

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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