A252050 Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and column sum not 1 3 6 or 8 and every diagonal and antidiagonal sum 1 3 6 or 8.

5192, 6136, 10114, 16536, 53346, 112542, 191804, 603460, 1370412, 2559304, 7987268, 18723782, 36790310, 113723442, 277684304, 552076276, 1727313092, 4309244108, 8715779900, 27105702580, 69652491786, 140623057866, 441367439678

Offset

1,1

Comments

Column 5 of A252053.

Links

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

R. H. Hardin, Empirical recurrence of order 62

Formula

Empirical recurrence of order 62 (see link above).

Example

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

Crossrefs

Cf. A252053.

Sequence in context: A031570 A066167 A247265 * A028549 A209811 A262909

Adjacent sequences: A252047 A252048 A252049 * A252051 A252052 A252053

Keyword

nonn

Author

R. H. Hardin, Dec 13 2014

Status

approved