A239846 - OEIS

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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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A239849

LINKS

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

R. H. Hardin, Empirical polynomial of degree 40

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

Adjacent sequences: A239843 A239844 A239845 * A239847 A239848 A239849

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 28 2014

STATUS

approved