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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.

A308478 a(n) = sum of the dimensions of the rational spans of all connected chord diagrams with n chords and any number m of link components, modulo all instances of the 4T-relation.

Table of values

n a(n)
1 2
2 8
3 44
4 347
5 3636

List of values

[2, 8, 44, 347, 3636]

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

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