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A184312
Number of strings of numbers x(i=1..n) in 0..3 with sum i^2*x(i)^3 equal to n^2*27.
2
1, 1, 1, 1, 2, 2, 6, 30, 69, 230, 662, 2244, 6197, 20782, 57963, 185236, 534294, 1636436, 4788888, 14148505, 41505698, 119551191, 347802192, 984873101, 2823972122, 7899999963, 22281193586, 61710573450, 171287868395, 469925476292
OFFSET
1,5
COMMENTS
Column 3 of A184318.
LINKS
EXAMPLE
All solutions for n=5
..0....0
..0....0
..3....0
..3....0
..0....3
CROSSREFS
Cf. A184318.
Sequence in context: A179929 A278258 A067644 * A097801 A164347 A052584
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 10 2011
STATUS
approved