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.

Showing 1-3 of 3 results.

A335781 a(n) is the number of regions formed by n-secting the angles of a nonagon (enneagon).

Original entry on oeis.org

1, 18, 127, 162, 388, 468, 154, 846, 1288, 1422, 1945, 2106, 2827, 1260, 3700, 3870, 4798, 4950, 5995, 6318, 4879, 7524, 8830, 9108, 10387, 10764, 12331, 8730, 13933, 14454, 16147, 16434, 18325, 18846, 16363, 20718, 23077, 23472, 25516, 26154, 28486, 23274
Offset: 1

Views

Author

Lars Blomberg, Jun 24 2020

Keywords

Links

Crossrefs

Cf. A332421 (n-sected sides, not angles), A335782 (vertices), A335783 (edges), A335784 (ngons).

A335782 a(n) is the number of vertices formed by n-secting the angles of a nonagon (enneagon).

Original entry on oeis.org

9, 19, 135, 118, 396, 379, 135, 712, 1296, 1243, 1953, 1891, 2835, 955, 3708, 3556, 4806, 4600, 6003, 5914, 4860, 7084, 8838, 8623, 10395, 10234, 12339, 7786, 13941, 13825, 16155, 15769, 18333, 18136, 16344, 19981, 23085, 22672, 25524, 25309, 28494, 22069
Offset: 1

Views

Author

Lars Blomberg, Jun 24 2020

Keywords

Comments

See A335781 for illustrations.

Links

Crossrefs

Cf. A332428 (n-sected sides, not angles), A335781 (regions), A335783 (edges), A335784 (ngons).

A335783 a(n) is the number of edges formed by n-secting the angles of a nonagon (enneagon).

Original entry on oeis.org

9, 36, 261, 279, 783, 846, 288, 1557, 2583, 2664, 3897, 3996, 5661, 2214, 7407, 7425, 9603, 9549, 11997, 12231, 9738, 14607, 17667, 17730, 20781, 20997, 24669, 16515, 27873, 28278, 32301, 32202, 36657, 36981, 32706, 40698, 46161, 46143, 51039, 51462, 56979
Offset: 1

Views

Author

Lars Blomberg, Jun 24 2020

Keywords

Comments

See A335781 for illustrations.

Links

Crossrefs

Cf. A332429 (n-sected sides, not angles), A335781 (regions), A335782 (vertices), A335784 (ngons).
Showing 1-3 of 3 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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