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A251494 Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock summing to 4 5 6 7 or 8 1
27844, 3361296, 411510096, 50511532876, 6203258853660, 761894242946484, 93579182156013156, 11493861583850016184, 1411734955462282813836, 173396563123949710511328, 21297460801008604080730372 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A251499
LINKS
FORMULA
Empirical recurrence of order 52 (see link above)
EXAMPLE
Some solutions for n=1
..3..2..0..3....3..2..0..3....2..0..1..3....2..1..0..1....2..2..1..0
..2..1..2..1....1..1..1..0....0..3..2..1....3..2..2..1....0..3..2..2
CROSSREFS
Sequence in context: A249000 A058419 A235208 * A327962 A046333 A202403
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 03 2014
STATUS
approved

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Last modified March 1 20:05 EST 2024. Contains 370443 sequences. (Running on oeis4.)