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A232157 Number of nX4 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, vertically or antidiagonally, and no adjacent values equal 1
8, 218, 1284, 7770, 46702, 286770, 1767266, 10830650, 66701686, 410364610, 2522566124, 15524673872, 95489164864, 587352257166, 3613537440642, 22227593479382, 136734516680534, 841147631122416, 5174280907720634 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A232161
LINKS
FORMULA
Empirical recurrence of order 94 (see link above)
EXAMPLE
Some solutions for n=5
..1..3..2..3....1..3..2..1....3..0..1..3....1..3..0..2....0..3..1..2
..2..0..1..2....2..1..3..0....1..2..0..1....2..1..3..1....1..2..0..3
..1..3..0..1....3..0..2..1....3..1..3..2....0..2..0..3....3..1..2..1
..2..1..2..0....2..1..0..3....2..0..1..3....1..3..2..1....2..0..3..2
..0..3..1..3....0..3..1..2....3..2..0..2....0..1..3..2....1..2..0..1
CROSSREFS
Sequence in context: A188680 A329304 A352471 * A305517 A298964 A298455
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 19 2013
STATUS
approved

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Last modified July 14 13:29 EDT 2024. Contains 374318 sequences. (Running on oeis4.)