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A226423 Number of nondecreasing -n..n vectors of length 2 whose dot product with some lexicographically greater or equal nondecreasing -n..n vector equals 2. 1
3, 11, 17, 25, 36, 47, 62, 78, 94, 116, 142, 158, 189, 221, 242, 274, 314, 346, 392, 423, 454, 508, 563, 595, 646, 709, 755, 803, 874, 917, 992, 1054, 1105, 1190, 1251, 1298, 1389, 1485, 1546, 1609, 1709, 1772, 1878, 1956, 2017, 2134, 2249, 2313, 2418, 2522 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 2 of A226422.
LINKS
EXAMPLE
Some solutions for n=3
.-2....0...-3...-3...-3...-2...-1...-2...-2....1...-1...-2...-1...-2....0...-3
..2....2...-2....1....2....1...-1....3....0....1....2...-2....3...-1....1...-1
CROSSREFS
Cf. A226422.
Sequence in context: A136082 A106083 A113803 * A045431 A126691 A154613
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 06 2013
STATUS
approved

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Last modified April 25 11:24 EDT 2024. Contains 371967 sequences. (Running on oeis4.)