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.

A216818 Number of simply 4-connected polyominoes of site-perimeter n.

Original entry on oeis.org

1, 0, 2, 4, 12, 32, 110, 340, 1193, 4080, 14786, 53428
Offset: 4

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N. J. A. Sloane, Sep 20 2012

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

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