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A249296 Number of length 6+3 0..n arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth 1
298, 7132, 73204, 740616, 3996816, 17477172, 63142432, 194636612, 528526458, 1310146892, 2974170600, 6332136700, 12731677772, 24341338640, 44558190142, 78679898026, 134198692616, 222298159666, 358597980904, 564781557470 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A249290

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A234659 A186126 A129037 * A245956 A235229 A064908

Adjacent sequences: A249293 A249294 A249295 * A249297 A249298 A249299

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 24 2014

STATUS

approved

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Last modified January 27 06:41 EST 2023. Contains 359837 sequences. (Running on oeis4.)