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A226411 Number of nondecreasing -n..n vectors of length 3 whose dot product with some nondecreasing -n..n vector equals 3. 1
4, 23, 74, 130, 240, 358, 566, 766, 1112, 1408, 1916, 2362, 3066, 3656, 4564, 5348, 6544, 7522, 9014, 10184, 11966, 13430, 15602, 17366, 19820, 21858, 24814, 27150, 30580, 33202, 37118, 40226, 44656, 48144, 52814, 56696, 62264, 66626, 72796, 77444 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=3:
-2 0 2 2 -1 -3 -3 -1 -3 -3 0 -3 -3 -1 -2 -3
-2 2 2 3 1 -3 -2 0 -1 -1 1 -3 -3 -1 -1 0
3 3 3 3 3 -3 3 3 3 2 2 -2 1 2 0 2
CROSSREFS
Row 3 of A226410.
Sequence in context: A085505 A065972 A132112 * A226342 A071246 A219933
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 06 2013
STATUS
approved

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Last modified May 22 04:07 EDT 2024. Contains 372742 sequences. (Running on oeis4.)