A229671 Number of defective 4-colorings of an n X 7 0..3 array connected horizontally, antidiagonally and vertically with exactly two mistakes, and colors introduced in row-major 0..3 order.

210, 197248, 13271403, 557478448, 19833096240, 649844491552, 20240623720512, 608439629860544, 17806253293949504, 510201757869319616, 14369593606196198208, 398974943425663174848, 10944826716029826275392

Offset

1,1

Comments

Column 7 of A229672.

Links

R. H. Hardin, Table of n, a(n) for n = 1..153

Example

Some solutions for n=3:
  0 0 1 2 0 3 1      0 0 1 0 2 0 1      0 0 1 2 3 2 0
  1 2 0 3 1 2 3      1 2 3 1 2 3 0      1 3 0 3 0 3 1
  0 3 1 2 1 0 1      0 1 2 3 0 2 1      0 1 2 1 2 0 2

Crossrefs

Sequence in context: A362945 A275458 A353111 * A134236 A136350 A068297

Adjacent sequences: A229668 A229669 A229670 * A229672 A229673 A229674

Keyword

nonn

Author

R. H. Hardin, Sep 27 2013

Status

approved