A229637 -id:A229637 - cp's OEIS frontend

A229643 Number of defective 3-colorings of a 7 X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.

0, 15795, 277996, 6049298, 133784624, 2902520386, 61836040854, 1290897457785, 26533491049453, 537479161392127, 10758714918897447, 213067493458619915, 4181337838281995586, 81391742898664549466, 1573067212373296604298

Offset: 1

R. H. Hardin, Sep 27 2013

nonn

Row 7 of A229637.

			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 0   0 1 2   0 1 2   0 1 2   2 1 0   0 1 0   0 1 2
  2 2 0   0 2 1   0 0 2   2 1 0   0 2 2   0 1 0   0 1 0
  0 1 0   1 2 0   2 1 2   1 2 0   0 1 0   2 1 2   0 2 0
  0 2 0   1 2 0   2 1 0   1 2 0   0 2 0   0 2 0   0 1 1
  0 1 0   0 2 0   0 1 0   1 2 1   0 2 1   1 2 1   0 1 2
  0 1 2   0 2 0   2 1 0   1 2 0   1 2 1   0 2 0   2 1 0

R. H. Hardin, Table of n, a(n) for n = 1..210

A229631 Number of defective 3-colorings of an n X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.

Original entry on oeis.org

0, 6, 244, 10227, 960325, 170405645, 61836040854, 45634751291449, 69219300810586905, 216612095709360988933, 1408049695722118625807058, 18999842797533792961661827884

Offset: 1

R. H. Hardin, Sep 27 2013

nonn

Diagonal of A229637.

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

Cf. A229637.

cp's OEIS Frontend

A229643 Number of defective 3-colorings of a 7 X n 0..2 array connected horizontally, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order.

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