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A248485 Number of length n+5 0..4 arrays with some three disjoint pairs in each consecutive six terms having the same sum 1
2125, 2605, 3301, 4285, 5641, 7465, 9865, 14005, 19945, 28315, 39895, 55615, 76555, 112435, 163723, 235909, 335791, 471475, 652375, 962455, 1405447, 2028817, 2891329, 4063045, 5625325, 8303485, 12129433, 17513101, 24962017, 35081305 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A248489

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +11*a(n-6) -11*a(n-7) -23*a(n-12) +23*a(n-13) +24*a(n-18) -24*a(n-19) -15*a(n-24) +15*a(n-25) +6*a(n-30) -6*a(n-31) -a(n-36) +a(n-37)

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A263510 A250970 A238035 * A321117 A278552 A278797

Adjacent sequences:  A248482 A248483 A248484 * A248486 A248487 A248488

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 07 2014

STATUS

approved

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Last modified April 1 14:52 EDT 2020. Contains 333163 sequences. (Running on oeis4.)