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A248984 Number of length n+4 0..5 arrays with every five consecutive terms having two times the sum of some three elements equal to three times the sum of the remaining two 1
1326, 1654, 2042, 2494, 3014, 3606, 4742, 6130, 7782, 9710, 11926, 16166, 21426, 27758, 35214, 43846, 60294, 80882, 105830, 135358, 169686, 234886, 316898, 416654, 535086, 673126, 934566, 1264322, 1666342, 2144574, 2702966, 3757734, 5090290 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A248987

LINKS

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

FORMULA

Empirical: a(n) = a(n-1) +10*a(n-5) -10*a(n-6) -31*a(n-10) +31*a(n-11) +26*a(n-15) -26*a(n-16) +8*a(n-20) -8*a(n-21)

EXAMPLE

Some solutions for n=6

..4....2....4....4....5....0....3....3....4....1....1....3....4....0....4....3

..0....3....0....4....4....1....5....5....3....5....1....1....5....4....0....1

..5....2....5....3....2....5....0....2....3....2....5....0....3....5....2....5

..5....2....4....1....0....4....4....5....5....0....3....0....2....4....0....1

..1....1....2....3....4....0....3....5....0....2....5....1....1....2....4....0

..4....2....4....4....5....5....3....3....4....1....1....3....4....5....4....3

..0....3....0....4....4....1....5....5....3....5....1....1....0....4....5....1

..0....2....5....3....2....0....5....2....3....2....0....5....3....5....2....5

..5....2....4....1....0....4....4....5....0....5....3....0....2....4....5....1

..1....1....2....3....4....5....3....5....0....2....5....1....1....2....4....0

CROSSREFS

Sequence in context: A145754 A020403 A249080 * A202374 A259415 A015162

Adjacent sequences:  A248981 A248982 A248983 * A248985 A248986 A248987

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 18 2014

STATUS

approved

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Last modified September 25 07:33 EDT 2020. Contains 337335 sequences. (Running on oeis4.)