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A248444 Number of length n+5 0..4 arrays with no three disjoint pairs in any consecutive six terms having the same sum 1
13500, 59480, 263212, 1166348, 5171484, 22934730, 101700684, 450991386, 2000009808, 8869712066, 39336467072, 174455791372, 773704708960, 3431349941260, 15217906257614, 67490867747734, 299319721502876 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A248448

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A234493 A029557 A115922 * A257149 A257156 A254738

Adjacent sequences:  A248441 A248442 A248443 * A248445 A248446 A248447

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 06 2014

STATUS

approved

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Last modified January 20 11:06 EST 2020. Contains 331083 sequences. (Running on oeis4.)