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.

A057729 Number of triangular polyominoes (or polyiamonds) [A000577] with perimeter n.

Original entry on oeis.org

0, 0, 1, 1, 1, 4, 5, 16, 37, 120, 345, 1181, 3844, 13429, 46736, 167172
Offset: 1

Views

Author

N. J. A. Sloane, Oct 29 2000

Keywords

References

  • a(10) found by Brendan Owen.

Links

Crossrefs

Cf. A000577, A284869, A316196.

Extensions

Link updated by William Rex Marshall, Dec 16 2009
a(11)-a(12) from Luca Petrone, Apr 04 2017
a(12)-a(16) corrected and extended by John Mason, Jul 26 2021

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

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