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, 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

Offset

0,3

Links

Table of n, a(n) for n=0..60.

Example

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

Crossrefs

Cf. A037078-A037080.

Sequence in context: A085834 A255577 A245319 * A270877 A303909 A110277

Adjacent sequences: A037078 A037079 A037080 * A037082 A037083 A037084

Keyword

nonn,base,easy

Author

N. J. A. Sloane.

Extensions

More terms from Erich Friedman

Status

approved