A198533 Number of 2n X 4 0..4 arrays with values 0..4 introduced in row major order and each element equal to an odd number of horizontal and vertical neighbors.

17, 7376, 5724014, 4685798318, 3879729611186, 3222491533589620, 2679021244608145508, 2227788819914832219768, 1852697804471510467351558, 1540794008599547700761105406, 1281407594160466806617993848394

Offset

1,1

Comments

Column 2 of A198534.

Links

R. H. Hardin, Table of n, a(n) for n = 1..88

Example

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

Crossrefs

Cf. A198534.

Sequence in context: A243481 A287038 A198406 * A192766 A166326 A203678

Adjacent sequences: A198530 A198531 A198532 * A198534 A198535 A198536

Keyword

nonn

Author

R. H. Hardin, Oct 26 2011

Status

approved