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A202073 Number of arrays of n+2 integers in -5..5 with sum zero and the sum of every adjacent pair being odd 1
24, 220, 504, 0, 15010, 142692, 340660, 0, 10924220, 105606040, 255768620, 0, 8472842700, 82602700388, 201570991218, 0, 6800283132780, 66634056364880, 163360889824230, 0, 5575911122723700, 54822111009651480, 134826580792851780 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A202076

LINKS

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

EXAMPLE

Some solutions for n=3

..2....2...-4....2....0....4...-2....2...-4....2....4...-2....2....4...-2....4

.-1....5....5....5....3...-3...-3...-3....5....3...-1...-3...-3...-1...-1....3

.-4...-2....2....0....4....2....0....4....0...-2...-4....4....4...-2....4....0

.-1...-1....1...-3...-5...-3....3...-5....3...-1....5....3...-1...-1...-1...-3

..4...-4...-4...-4...-2....0....2....2...-4...-2...-4...-2...-2....0....0...-4

CROSSREFS

Sequence in context: A138406 A042112 A297679 * A107968 A269777 A024302

Adjacent sequences: A202070 A202071 A202072 * A202074 A202075 A202076

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 10 2011

STATUS

approved

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Last modified January 29 00:02 EST 2023. Contains 359905 sequences. (Running on oeis4.)