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A225998 Number of pairs of orthogonal (-5,6) vectors of length 11*n. 1
22176, 335386827776, 849096326082723840, 3382498893919837995663360, 12525301776918401256778352295936, 47806396948285999641998907781626724352, 186570872745316137212860850541663493543690240 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 12 of A225987.
LINKS
EXAMPLE
Some solutions for n=1
.-5..6...-5..6....6..6...-5..6....6..6...-5..6....6..6...-5..6...-5..6...-5.-5
..6.-5....6..6...-5..6....6..6...-5..6....6..6....6..6...-5..6...-5..6...-5.-5
..6..6....6..6....6.-5....6..6....6..6....6..6...-5..6...-5..6....6..6...-5.-5
..6.-5....6.-5....6..6....6..6...-5..6....6.-5....6.-5....6..6....6..6...-5..6
..6.-5....6.-5....6.-5....6.-5....6.-5....6..6....6..6....6.-5....6.-5...-5.-5
..6..6....6..6....6.-5....6.-5....6.-5....6..6....6.-5....6..6...-5..6...-5.-5
..6..6....6..6....6..6....6.-5....6.-5....6.-5....6.-5....6.-5....6.-5...-5.-5
..6..6...-5..6....6..6....6..6....6..6...-5..6....6..6....6..6....6..6...-5..6
..6..6...-5..6....6.-5...-5..6....6..6...-5..6...-5..6....6..6....6..6....6.-5
.-5..6...-5..6....6.-5...-5..6....6.-5....6..6....6..6...-5..6....6..6...-5..6
..6.-5....6..6....6..6....6..6....6..6...-5..6...-5..6....6..6....6.-5....6.-5
CROSSREFS
Sequence in context: A043815 A157622 A225392 * A209396 A210295 A060109
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 22 2013
STATUS
approved

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Last modified July 24 22:37 EDT 2024. Contains 374585 sequences. (Running on oeis4.)