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1, 5, 9, 9, 9, 9, 9, 9, 13, 21, 21, 21, 21, 21, 21, 21, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 29, 37, 37, 37, 37, 37, 37, 37, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 53, 61, 61, 61, 61, 61, 61, 61
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refs;
listen;
history;
text;
internal format)
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OFFSET
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0,2
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COMMENTS
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Number of integer pairs (x,y) satisfying |x|^3+|y|^3 <= n, any -n <= x,y <=n. Cubic variant of A057655.
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LINKS
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EXAMPLE
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a(1) = 5 counts (x,y) = (-1,0), (0,-1), (0,0), (0,1) and (1,0).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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