A051586 There are exactly n integer-sided triangles of area a(n).

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, 60480, 73920, 133056, 207900

Offset

1,1

Comments

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

Links

Giovanni Resta, Table of n, a(n) for n = 1..75

Crossrefs

Cf. A051584, A051585.

Sequence in context: A095388 A038515 A335735 * A228858 A102077 A102062

Adjacent sequences: A051583 A051584 A051585 * A051587 A051588 A051589

Keyword

nonn

Author

David W. Wilson

Extensions

More terms from Giovanni Resta, Nov 04 2019

Status

approved