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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

R. H. Hardin, Table of n, a(n) for n = 1..41

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

Adjacent sequences:  A225995 A225996 A225997 * A225999 A226000 A226001

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 22 2013

STATUS

approved

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Last modified December 6 09:27 EST 2021. Contains 349563 sequences. (Running on oeis4.)