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A184698
Number of strings of numbers x(i=1..n) in 0..4 with sum i*x(i) equal to n*4
1
1, 3, 9, 28, 78, 207, 504, 1169, 2574, 5439, 11071, 21841, 41846, 78193, 142787, 255441, 448444, 773966, 1314861, 2201731, 3637642, 5935817, 9574284, 15277075, 24130784, 37755124, 58545388, 90021407, 137320211, 207895383, 312495662
OFFSET
1,2
COMMENTS
Column 4 of A184703
LINKS
EXAMPLE
Some solutions for n=6
..2....3....3....3....1....3....4....2....2....0....2....3....3....4....1....1
..4....1....3....0....0....2....0....0....3....0....1....0....2....2....4....3
..2....3....2....0....3....4....0....4....0....0....1....3....1....0....0....2
..2....1....1....4....1....0....0....1....0....3....0....0....1....0....1....0
..0....0....1....1....2....1....4....0....2....0....1....0....2....2....1....1
..0....1....0....0....0....0....0....1....1....2....2....2....0....1....1....1
CROSSREFS
Sequence in context: A373445 A294958 A047134 * A027099 A292328 A027090
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2011
STATUS
approved