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A253040 Number of (n+2)X(4+2) 0..3 arrays with every consecutive three elements in every row, column, diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order 1
2638, 1866, 3119, 5860, 11904, 24232, 51292, 106308, 220782, 459446, 975228, 2051948, 4296456, 8990830, 18974386, 40168988, 84355336, 176912878, 372064076, 789230276, 1658790278, 3487370854, 7319531044, 15513370438, 32648371576 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A253044

LINKS

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

R. H. Hardin, Empirical recurrence of order 82

FORMULA

Empirical recurrence of order 82 (see link above)

EXAMPLE

Some solutions for n=4

..0..1..1..2..2..0....0..0..1..1..2..1....0..1..1..2..2..0....0..1..0..0..2..0

..0..2..2..1..1..0....2..1..2..1..1..3....1..1..0..0..2..0....0..0..1..1..2..2

..1..1..2..1..2..1....2..1..1..2..2..3....0..2..0..0..1..1....1..0..1..0..0..2

..1..1..0..0..1..1....1..2..1..2..1..2....0..2..2..1..1..0....1..2..2..0..0..1

..2..0..2..0..2..2....1..1..3..3..2..2....2..0..2..0..0..1....2..2..1..2..1..1

..2..0..0..1..1..2....2..2..3..3..1..1....2..2..1..1..0..0....1..1..2..2..0..0

CROSSREFS

Sequence in context: A212605 A273184 A252579 * A157609 A249462 A257183

Adjacent sequences:  A253037 A253038 A253039 * A253041 A253042 A253043

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2014

STATUS

approved

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Last modified January 23 23:01 EST 2022. Contains 350515 sequences. (Running on oeis4.)