A134236 Ternary numbers with equal numbers of 0's, 1's and 2's and such that read left-to-right at all times the number of 2's >= number of 1's >= number of 0's.

210, 210210, 212010, 212100, 221010, 221100, 210210210, 210212010, 210212100, 210221010, 210221100, 212010210, 212012010, 212012100, 212021010, 212021100, 212100210, 212102010, 212102100, 212120010, 212120100, 212121000, 212201010

Offset

1,1

Comments

A005789(n) counts the terms here with 3n ternary digits.

Links

Table of n, a(n) for n=1..23.

Crossrefs

Cf. A005789, A063171, A000108.

Sequence in context: A275458 A353111 A229671 * A136350 A068297 A196887

Adjacent sequences: A134233 A134234 A134235 * A134237 A134238 A134239

Keyword

base,nonn

Author

Rick L. Shepherd, Oct 14 2007

Status

approved