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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.

A211953 Number of distinct regular languages over 4-ary alphabet, whose minimum regular expression has ordinary length n.

Original entry on oeis.org

6, 20, 102, 520, 2628, 13482, 68747, 354500, 1840433
Offset: 1

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Hermann Gruber, Apr 26 2012

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