A278097 Number of nX4 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

0, 58, 2996, 165408, 8817738, 469476315, 24968293789, 1327640457829, 70590643428412, 3753257087015148, 199557480575235203, 10610292692535605424, 564139654771938009044, 29994793111068876818904, 1594795889617184754313078

Offset

1,2

Comments

Column 4 of A278099.

Links

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

Example

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

Crossrefs

Cf. A278099.

Sequence in context: A280111 A281031 A225352 * A299467 A334935 A207278

Adjacent sequences: A278094 A278095 A278096 * A278098 A278099 A278100

Keyword

nonn

Author

R. H. Hardin, Nov 12 2016

Status

approved