A263435 Number of (n+1)X(2+1) 0..4 arrays with each row and column divisible by 13, read as a base-5 number with top and left being the most significant digits.

2, 21, 180, 1225, 9820, 90785, 841164, 7551453, 69952442, 680669118, 6633057660, 63951722552, 623631395787, 6183296733749, 61331317468332, 606202380764411, 6014248065257267, 59984150594548551, 598328234748009180

Offset

1,1

Comments

Column 2 of A263439.

Links

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

R. H. Hardin, Empirical recurrence of order 88

Formula

Empirical recurrence of order 88 (see link above)

Example

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

Crossrefs

Cf. A263439.

Sequence in context: A377859 A215710 A112673 * A202028 A265167 A037749

Adjacent sequences: A263432 A263433 A263434 * A263436 A263437 A263438

Keyword

nonn

Author

R. H. Hardin, Oct 18 2015

Status

approved