A037080 In ternary expansion of n, reading from right to left, successive runs of the digits occur in order ...,0,1,2,0,1,2,...

0, 1, 2, 3, 4, 7, 8, 9, 11, 12, 13, 21, 22, 25, 26, 27, 29, 34, 35, 36, 38, 39, 40, 63, 65, 66, 67, 75, 76, 79, 80, 81, 83, 88, 89, 102, 103, 106, 107, 108, 110, 115, 116, 117, 119, 120, 121, 189, 191, 196, 197, 198, 200, 201, 202, 225, 227, 228, 229, 237, 238, 241

Offset

0,3

Links

Table of n, a(n) for n=0..61.

Example

For example, any number whose ternary expansion is 11..100..02..211..11 passes the test.

Crossrefs

Cf. A037078-A037081.

Sequence in context: A073798 A124375 A287664 * A167055 A022162 A022164

Adjacent sequences: A037077 A037078 A037079 * A037081 A037082 A037083

Keyword

nonn,base,easy

Author

N. J. A. Sloane.

Extensions

More terms from Erich Friedman

Status

approved