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A198704 Number of nX4 0..4 arrays with values 0..4 introduced in row major order and each element equal to at least one horizontal or vertical neighbor 1
2, 76, 3893, 322230, 30407251, 3075124662, 316137386807, 32741782389619, 3397146912481247, 352742075116393899, 36634081239038426907, 3804936727099857364455, 395201634386514861187551 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A198708

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..124

EXAMPLE

Some solutions with all values 0 to 4 for n=3

..0..0..1..1....0..0..1..1....0..0..1..1....0..0..1..2....0..1..1..2

..2..0..3..4....2..2..3..3....2..2..3..3....3..1..1..2....0..3..1..2

..2..0..3..4....4..4..3..3....3..3..4..4....3..3..4..4....3..3..4..4

CROSSREFS

Sequence in context: A351376 A276203 A324216 * A198623 A198651 A198658

Adjacent sequences:  A198701 A198702 A198703 * A198705 A198706 A198707

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 29 2011

STATUS

approved

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Last modified October 3 10:36 EDT 2022. Contains 357231 sequences. (Running on oeis4.)