cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A189417 Number of kites on an n X n grid (or geoboard).

Original entry on oeis.org

0, 1, 10, 58, 222, 631, 1584, 3340, 6504, 11697, 19978, 31922, 49822, 74167, 107672, 152484, 211944, 286725, 383578, 502262, 651526, 833979, 1056104, 1318104, 1637336, 2011577, 2452634, 2965902, 3568086, 4253755, 5055448, 5960480, 6999104, 8173985, 9503674, 10994202
Offset: 1

Views

Author

Martin Renner, Apr 21 2011

Keywords

Comments

Only convex kites are counted, not concave kites (sometimes called darts or arrowheads).

Links

Crossrefs

Cf. A181946, A189413, A189414.

Extensions

a(7)-a(29) from Nathaniel Johnston, Apr 27 2011
a(30)-a(36) from Lucas A. Brown, Feb 09 2024
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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