login
A188004
Number of nondecreasing arrangements of 4 numbers x(i) in -(n+2)..(n+2) with the sum of sign(x(i))*x(i)^2 zero
2
12, 17, 25, 34, 46, 57, 75, 88, 108, 125, 147, 170, 196, 217, 249, 280, 316, 345, 387, 422, 466, 501, 545, 588, 644, 687, 743, 792, 850, 901, 973, 1034, 1100, 1157, 1227, 1294, 1374, 1435, 1519, 1594, 1682, 1757, 1847, 1930, 2026, 2103, 2205, 2294, 2404, 2491
OFFSET
1,1
COMMENTS
Row 4 of A188002
LINKS
EXAMPLE
Some solutions for n=3
..0...-5...-2...-4...-3...-5...-4...-2...-3...-5...-5...-4...-2...-5...-5...-4
..0...-2...-2...-4....0...-5...-2....0....1...-4...-1....0...-2....0....0...-1
..0....2...-1....4....0....5....2....0....2....4....1....0....2....0....3....1
..0....5....3....4....3....5....4....2....2....5....5....4....2....5....4....4
CROSSREFS
Sequence in context: A336890 A302359 A214514 * A045699 A155096 A166674
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 18 2011
STATUS
approved