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A051585 Number of integer-sided triangles of area 6n. 3
1, 2, 0, 2, 1, 2, 1, 2, 1, 4, 1, 1, 0, 4, 2, 2, 0, 2, 1, 4, 3, 1, 0, 2, 1, 2, 0, 4, 0, 2, 0, 2, 1, 1, 6, 3, 0, 0, 1, 5, 0, 3, 0, 3, 2, 0, 0, 2, 1, 4, 1, 0, 0, 2, 4, 8, 0, 0, 0, 5, 0, 0, 1, 2, 1, 3, 0, 1, 0, 15, 0, 2, 0, 0, 0, 4, 2, 1, 0, 5, 1, 0, 0, 6, 2, 0, 1, 3, 0, 4, 3, 0, 0, 0, 1, 2, 0, 2, 1, 2, 0, 0, 0 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

If integer-sided triangle has integer area, area is divisible by 6.

CROSSREFS

Cf. A051584, A051586.

Sequence in context: A107455 A039701 A025822 * A049115 A029367 A192541

Adjacent sequences:  A051582 A051583 A051584 * A051586 A051587 A051588

KEYWORD

nonn

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

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Last modified February 15 20:26 EST 2012. Contains 205852 sequences.