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A239846
Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or two plus the sum of the elements diagonally to its northwest, modulo 4
1
5, 35, 244, 1613, 9066, 46260, 214126, 921674, 3745690, 14493362, 53568061, 189418056, 642520724, 2097034554, 6603318291, 20113173790, 59401818885, 170482050659, 476411892763, 1298626619304, 3458363180706, 9010558662526
OFFSET
1,1
COMMENTS
Column 4 of A239849
FORMULA
Empirical polynomial of degree 40 (see link above)
EXAMPLE
Some solutions for n=4
..0..0..3..3....0..0..3..3....3..3..0..0....0..0..3..3....0..0..0..0
..0..3..1..3....0..3..1..3....3..2..0..3....0..0..3..3....0..3..3..0
..3..1..2..0....3..1..2..0....0..0..0..2....0..3..1..0....3..1..2..2
..3..3..1..2....3..2..0..0....0..3..2..0....0..3..2..0....3..2..0..1
CROSSREFS
Sequence in context: A305739 A290903 A155127 * A193577 A196661 A104532
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 28 2014
STATUS
approved