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A289668 Areas of triangles associated with tribonacci sequence. 1
3, 64, 849, 23360, 509729, 10049160, 214791995, 4582007808, 95633654271, 2011480360208, 42459705606109, 893070242668352, 18788753272869405, 395671718478936984, 8328759870675121207, 175295868495634317312, 3690123375120540334811, 77677685024810684936288, 1635060499549966955442345 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Apparently no formula or recurrence is known for these numbers.

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..756

Virginia Johnson, C. K. Cook, Areas of Triangles and other Polygons with Vertices from Various Sequences, arXiv preprint arXiv:1608.02420 [math.CO], 2016.

CROSSREFS

Sequence in context: A249097 A092901 A099338 * A119924 A231823 A174841

Adjacent sequences:  A289665 A289666 A289667 * A289669 A289670 A289671

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jul 28 2017

EXTENSIONS

More terms from Chai Wah Wu, Jul 30 2017

STATUS

approved

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Last modified December 12 12:50 EST 2019. Contains 329958 sequences. (Running on oeis4.)