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A051586 There are exactly n integer-sided triangles of area a(n). 2
6, 12, 126, 60, 240, 210, 1080, 336, 1260, 924, 2016, 2640, 5280, 11424, 420, 2520, 840, 5544, 3696, 14280, 3360, 25200, 1680, 6720, 10920, 26880, 15960, 137280, 23100, 43680, 64680, 21840, 32760, 24024, 13860, 7560, 68040, 49140, 262080 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

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

CROSSREFS

Cf. A051584, A051585.

Sequence in context: A191662 A095388 A038515 * A102077 A102062 A164584

Adjacent sequences:  A051583 A051584 A051585 * A051587 A051588 A051589

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 08:21 EST 2012. Contains 205998 sequences.