A229642 Number of defective 3-colorings of a 6 X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.
0, 3924, 50084, 747299, 11485716, 170405645, 2495874984, 35693194243, 503332240292, 6990933433009, 96001895136772, 1304362116389856, 17565879194817688, 234673938451844201, 3113368949256998744
Offset: 1
Keywords
Examples
Some solutions for n=3: 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 2 1 2 2 1 2 2 1 0 2 1 2 0 1 0 0 2 1 1 2 1 2 1 0 1 1 0 2 0 1 1 0 1 2 0 2 0 1 0 1 0 1 2 1 0 0 2 0 2 0 1 1 0 1 1 0 2 2 1 0 2 0 2 1 2 0 1 2 0 1 0 1 1 0 2 1 0 1 2 1 0 2 1 2 0 2 1 0 2 1 2 0 1 1 0 2 2 0 1 0 1 0 2 0 2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical recurrence of order 69
Formula
Empirical recurrence of order 69 (see link above).
Comments