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A202075 Number of arrays of n+2 integers in -7..7 with sum zero and the sum of every adjacent pair being odd 1
44, 560, 1786, 0, 95342, 1264272, 4213042, 0, 241384794, 3259289000, 11028760078, 0, 651843679214, 8881641917904, 30295985735960, 0, 1822122857478000, 24962501190898560, 85571276146432860, 0, 5204404120691796724 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A202076

LINKS

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

EXAMPLE

Some solutions for n=3

.-4....4....4....2...-6....2....4...-6...-4...-2....2....0....0...-2...-2....2

.-5...-5....7...-5....5...-1...-5....7...-3....7...-3...-3....5....3....3...-7

.-2....2...-4....2....0....0...-2...-2....6...-2....6...-2...-2....4...-2....6

..5...-3...-7...-5...-5...-3....7....1....1...-1...-1....5...-3...-7....1...-7

..6....2....0....6....6....2...-4....0....0...-2...-4....0....0....2....0....6

CROSSREFS

Sequence in context: A283541 A354608 A339852 * A297680 A264680 A356415

Adjacent sequences:  A202072 A202073 A202074 * A202076 A202077 A202078

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 10 2011

STATUS

approved

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Last modified August 18 14:22 EDT 2022. Contains 356215 sequences. (Running on oeis4.)