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 1-5 of 5 results.

A259351 Number of generalized fusenes with n pentagons.

Original entry on oeis.org

1, 1, 2, 4, 7, 18, 35, 87, 206, 527, 1337, 3524, 9262, 24772, 66402, 179589, 487435, 1330708, 3645754, 10031143, 27691894, 76708835, 213122892, 593851624, 1659104995, 4646951873, 13046181167, 36708619646, 103505545079, 292430771955, 827749791118, 2347201206583, 6667102499129, 18968089092814
Offset: 1

Views

Author

Pieter Goetschalckx, Jun 24 2015

Keywords

Links

Crossrefs

Cf. A108070, A259352, A259353, A259354, A259355.

A259353 Number of generalized fusenes with n octagons.

Original entry on oeis.org

1, 1, 4, 14, 85, 598, 4837, 41570, 372830, 3436289, 32373742, 310407548, 3020894755, 29776585115, 296777846799, 2986882651510, 30321553394791
Offset: 1

Views

Author

Pieter Goetschalckx, Jun 24 2015

Keywords

Links

Crossrefs

Cf. A108070, A259351, A259352, A259354, A259355.

A259354 Number of generalized fusenes with n nonagons.

Original entry on oeis.org

1, 1, 4, 19, 136, 1226, 12259, 130435, 1441755, 16390266, 190484723, 2254489731, 27096464528, 329995577356, 4065180800962, 50584233942184
Offset: 1

Views

Author

Pieter Goetschalckx, Jun 24 2015

Keywords

Links

Crossrefs

Cf. A108070, A259351, A259352, A259353, A259355.

A259355 Number of generalized fusenes with n decagons.

Original entry on oeis.org

1, 1, 5, 24, 215, 2256, 26925, 339523, 4456349, 60149731, 830492066, 11681979493, 166929456330, 2417719752083, 35429035715975
Offset: 1

Views

Author

Pieter Goetschalckx, Jun 24 2015

Keywords

Links

Crossrefs

Cf. A108070, A259351, A259352, A259353, A259354.

A333018 Number of free heptagonal polyforms with n cells on the heptagonal tiling of the hyperbolic plane.

Original entry on oeis.org

1, 1, 1, 3, 10, 44, 249, 1513, 9992, 68305, 480748, 3450793, 25186583
Offset: 0

Views

Author

Peter Kagey, Mar 05 2020

Keywords

Comments

The heptagonal tiling is represented by Schläfli symbol {7,3}.
This sequence is to A259352 what A000228 is to A108070.
This sequence is computed from via program by Christian Sievers in the Code Golf Stack Exchange link.

Links

Crossrefs

Analogs with different Schläfli symbols are A000105 ({4,4}), A000207 ({3,oo}), A000228 ({6,3}), A000577 ({3,6}), A005036 ({4,oo}), A119611 ({4,5}), A330659 ({3,7}), and A332930 ({4,6}).
Cf. A108070, A259352.

Extensions

a(9)-a(12) from Ed Wynn, Feb 14 2021
Showing 1-5 of 5 results.

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

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