A031945 Numbers in which 0,1,2,3 all occur in base 4.

75, 78, 99, 108, 114, 120, 135, 141, 147, 156, 177, 180, 198, 201, 210, 216, 225, 228, 267, 270, 283, 286, 291, 295, 299, 300, 301, 302, 303, 306, 310, 312, 313, 314, 315, 318, 331, 334, 355, 364, 370, 376, 387, 391, 395, 396

Offset: 1

Author

Clark Kimberling

Keywords

• nonn
• base

Comments

Or, numbers in which the number of distinct base 4 digits is 4.

Extensions

Edited by N. J. A. Sloane, Apr 05 2009 at the suggestion of R. J. Mathar