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A028419 Congruence classes of triangles which can be drawn using lattice points in n X n grid as vertices. +0
3
0, 1, 8, 29, 79, 172, 333, 587, 963, 1494, 2228, 3195, 4455, 6050, 8032, 10481, 13464, 17014, 21235, 26190, 31980, 38666, 46388, 55144, 65131, 76449, 89132, 103337, 119184, 136757, 156280, 177796, 201430, 227331, 255668, 286606 (list; graph; listen)
OFFSET

0,3
LINKS

D. Rusin, Title?

CROSSREFS

Adjacent sequences: A028416 A028417 A028418 this_sequence A028420 A028421 A028422

Sequence in context: A037157 A100178 A106113 this_sequence A046664 A055536 A131438

KEYWORD

nonn

AUTHOR

Dave Rusin (rusin(AT)math.niu.edu)

EXTENSIONS

More terms from Chris Cole (chris(AT)questrel.com), Jun 28 2003

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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