A274585 - OEIS

A274585

Total number of vertices formed by intersections among sides and straight "chords" in a right triangle when each side is divided by vertices into n equal segments.

1, 3, 10, 58, 178, 558, 1255, 2532, 4786, 7804, 12292, 18966, 28540, 39117, 56107, 73924, 96010, 124704, 164815, 203316, 258706, 311296, 377998, 458862, 560827, 649011, 775336, 908974, 1056604, 1215174, 1428283, 1607964, 1866103, 2111587, 2399647, 2694115, 3040309, 3356544, 3811501, 4253191, 4720222, 5180589, 5806813, 6325035, 7036081, 7691035, 8392174, 9180471, 10136431, 10894698, 11930983

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OFFSET

0,2

COMMENTS

Total number of points at intersections of sides/"chords" for the triangle in A092866(n).

LINKS

Table of n, a(n) for n=0..50.

Scott R. Shannon, Image for n = 2.

Scott R. Shannon, Image for n = 3.

Scott R. Shannon, Image for n = 4.

Scott R. Shannon, Image for n = 5.

Scott R. Shannon, Image for n = 6.