A263552 Number of (n+1)X(2+1) 0..4 arrays with each row and column divisible by 7, read as a base-5 number with top and left being the most significant digits.

10, 123, 2210, 38765, 695964, 12496675, 224917356, 4048173635, 72867144002, 1311601599673, 23608817069520, 424958486053303, 7649252553421318, 137686543396816875, 2478357781214919410, 44610440006778903293

Offset

1,1

Comments

Column 2 of A263558.

Links

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

R. H. Hardin, Empirical recurrence of order 47

Formula

Empirical recurrence of order 47 (see link above)

Example

Some solutions for n=4
..4..2..2....4..2..2....2..2..3....4..2..2....3..0..2....0..0..0....4..2..2
..0..4..1....1..4..4....3..3..1....0..4..1....1..4..4....4..3..4....2..4..0
..4..1..0....3..3..1....0..0..0....4..2..2....2..2..3....0..2..4....3..4..3
..3..0..2....0..1..2....1..2..0....0..2..4....1..4..4....3..3..1....2..1..1
..3..3..1....2..4..0....1..3..2....4..3..4....3..4..3....3..1..4....0..0..0

Crossrefs

Cf. A263558.

Sequence in context: A081784 A239760 A296190 * A259839 A005174 A034668

Adjacent sequences: A263549 A263550 A263551 * A263553 A263554 A263555

Keyword

nonn

Author

R. H. Hardin, Oct 21 2015

Status

approved