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%I #6 Mar 17 2023 01:57:52
%S 3,11,17,25,36,47,62,78,94,116,142,158,189,221,242,274,314,346,392,
%T 423,454,508,563,595,646,709,755,803,874,917,992,1054,1105,1190,1251,
%U 1298,1389,1485,1546,1609,1709,1772,1878,1956,2017,2134,2249,2313,2418,2522
%N Number of nondecreasing -n..n vectors of length 2 whose dot product with some lexicographically greater or equal nondecreasing -n..n vector equals 2.
%C Row 2 of A226422.
%H R. H. Hardin, <a href="/A226423/b226423.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e .-2....0...-3...-3...-3...-2...-1...-2...-2....1...-1...-2...-1...-2....0...-3
%e ..2....2...-2....1....2....1...-1....3....0....1....2...-2....3...-1....1...-1
%Y Cf. A226422.
%K nonn
%O 1,1
%A _R. H. Hardin_, Jun 06 2013