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

Author

Rick L. Shepherd, Oct 14 2007

Keywords

• base
• nonn

Comments

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

Crossrefs

Cf. A005789, A063171, A000108.