OFFSET
0,3
FORMULA
a(n) = A287152(n,n^2).
EXAMPLE
All solutions for 2X2
..1..2....1..2....1..4....2..1....2..1....2..4....3..1....3..2....3..4
..3..4....4..3....3..2....3..4....4..3....1..3....4..2....1..4....1..2
MATHEMATICA
a[n_] := A181206[[2 n^2 - 2 n + 1]];
Table[a[n], {n, 1, 10}] (* Jean-François Alcover, Sep 23 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 10 2010
EXTENSIONS
a(0) and a(10) from Alois P. Heinz, May 20 2017
STATUS
approved