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 1-2 of 2 results.

A379434 Number of rooted planar maps with n edges and without faces of degree 1 or 2.

Original entry on oeis.org

1, 0, 2, 9, 47, 278, 1720, 11175, 75149, 519852
Offset: 0

Views

Author

Andrew Howroyd, Jan 14 2025

Keywords

Crossrefs

Cf. A000168, A006392 (sensed), A006393 (unsensed), A379433.

A006393 Number of unsensed planar maps with n edges and without faces of degree 1 or 2.

Original entry on oeis.org

1, 0, 1, 4, 9, 32, 132, 597, 3064, 17114, 102274, 643907, 4219540
Offset: 0

Views

Author

N. J. A. Sloane

Keywords

References

  • N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

Links

Crossrefs

Cf. A006385, A006389, A006392 (sensed), A379434 (rooted).

Extensions

a(8)-a(12) from Sean A. Irvine, Mar 29 2017
a(0)-a(1) prepended by Andrew Howroyd, Jan 16 2025
Showing 1-2 of 2 results.

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

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