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A249173 Number of length 2+6 0..n arrays with every seven consecutive terms having four times the sum of some three elements equal to three times the sum of the remaining four 1
2, 395, 2258, 11177, 39066, 115437, 354572, 920337, 2088652, 4325029, 8248606, 14889789, 25395692, 43971071, 72461790, 114932123, 175804156, 261631751, 378607326, 536343367, 761825382, 1059711829, 1446131636, 1941874063 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A249171

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for n=6

..4....1....3....3....2....3....1....4....4....1....2....6....2....4....5....2

..5....4....4....3....4....1....6....4....0....2....2....0....2....6....4....4

..0....0....0....1....3....1....6....2....5....1....1....0....1....1....4....3

..1....3....1....3....6....4....0....1....2....6....3....6....2....0....1....2

..3....4....3....4....1....5....5....4....4....0....0....5....2....6....3....6

..3....0....0....3....5....3....4....4....3....6....6....0....0....1....0....0

..5....2....3....4....0....4....6....2....3....5....0....4....5....3....4....4

..4....1....3....3....2....3....1....4....4....1....2....6....2....4....5....2

CROSSREFS

Sequence in context: A249261 A249262 A249172 * A249174 A249175 A249176

Adjacent sequences:  A249170 A249171 A249172 * A249174 A249175 A249176

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 22 2014

STATUS

approved

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Last modified January 23 22:46 EST 2022. Contains 350515 sequences. (Running on oeis4.)