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A267837 Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to or 1 greater than any northeast neighbor modulo 4 and the upper left element equal to 0. 1
6, 54, 924, 19696, 456052, 11169884, 284749896, 7478180356, 200946163564, 5498658652872, 152701830225328, 4292791741022352, 121927662325745128, 3493616278749683152, 100864166949775322480, 2931337070411050352250 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A267836.
LINKS
EXAMPLE
Some solutions for n=4
..0..1..2..1....0..2..1..1....0..2..3..1....0..0..1..1....0..3..1..3
..2..3..1..3....2..1..2..3....3..3..1..0....0..1..1..2....0..2..3..1
..0..2..3..0....1..2..0..3....3..2..0..0....2..2..3..3....3..0..1..2
..3..0..1..2....3..0..0..3....2..1..1..2....2..3..3..0....0..2..2..1
CROSSREFS
Cf. A267836.
Sequence in context: A360545 A217238 A171681 * A049037 A047681 A075575
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2016
STATUS
approved

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)