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A226341 Number of nondecreasing -n..n vectors of length 2 whose dot product with some other -n..n vector equals 2. 2
3, 14, 22, 34, 50, 66, 90, 114, 138, 170, 210, 234, 282, 330, 362, 410, 474, 522, 594, 642, 690, 770, 858, 906, 986, 1082, 1154, 1226, 1338, 1402, 1522, 1618, 1698, 1826, 1922, 1994, 2138, 2282, 2378, 2474, 2634, 2730, 2898, 3018, 3114, 3290, 3474, 3570, 3738 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=3:
-1 -2 2 -2 2 1 1 -3 -3 -2 1 -1 -2 -3 0 -1
2 -1 2 2 3 3 2 1 -2 1 1 0 -2 -1 1 3
CROSSREFS
Row 2 of A226340.
Sequence in context: A300216 A258218 A255219 * A024473 A024598 A019001
KEYWORD
nonn,changed
AUTHOR
R. H. Hardin, Jun 04 2013
STATUS
approved

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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)