A206314 Number of (n+1)X5 0..3 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero

53463, 4466450, 375274347, 31585648103, 2656145209648, 223458785606871, 18792437854613234, 1580709874695673480, 132941278551460873763, 11181607230811497171290, 940424480197031998954820

Offset

1,1

Comments

Column 4 of A206318

Links

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

Example

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

Crossrefs

Sequence in context: A164519 A237180 A186199 * A237373 A251369 A252035

Adjacent sequences: A206311 A206312 A206313 * A206315 A206316 A206317

Keyword

nonn

Author

R. H. Hardin Feb 06 2012

Status

approved