A240397 Number of 5Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4

4, 120, 1232, 8656, 50756, 263816, 1378418, 6579675, 29397762, 123759215, 496112681, 1900666919, 6979266540, 24609313384, 83512254200, 273448859847, 866039269080, 2658909119696, 7930100322771, 23019222158010, 65147052918163

Offset

1,1

Comments

Row 5 of A240394

Links

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

R. H. Hardin, Empirical polynomial of degree 44

Formula

Empirical polynomial of degree 44 (see link above)

Example

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

Crossrefs

Sequence in context: A064204 A054644 A006434 * A347425 A002702 A068204

Adjacent sequences: A240394 A240395 A240396 * A240398 A240399 A240400

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved