cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A370871 Numbers m such that c(0) >= c(1) > c(2), where c(k) = number of k's in the ternary representation of m.

Original entry on oeis.org

3, 9, 27, 28, 30, 36, 81, 82, 84, 86, 88, 90, 92, 96, 100, 102, 108, 110, 114, 126, 136, 138, 144, 166, 172, 174, 190, 192, 198, 243, 244, 246, 247, 248, 250, 252, 253, 254, 255, 258, 262, 264, 270, 271, 272, 273, 276, 279, 288, 298, 300, 306, 324, 325, 326
Offset: 1

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Author

Clark Kimberling, Mar 11 2024

Keywords

Examples

			The ternary representation of 84 is 10010, for which c(0)=3 >= c(1)=2 > c(2)=0.
		

Crossrefs

Programs

  • Mathematica
    Select[Range[1000], DigitCount[#, 3, 0] >= DigitCount[#, 3, 1] > DigitCount[#, 3, 2] &]