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.

A371611 Number of 2*n-sided cycles with the property that one makes the same number of left and right turns while following its edges.

Table of values

n a(n)
2 4
3 36
4 1240
5 73240
6 7171176
7 1016813448
8 198480110880
9 50752206180576
10 16460660622560680
11 6595414427636900536
12 3198428240666246044704
13 1845848150787599809368856
14 1250049326783769438348496480
15 981653074459964543314138858320

List of values

[4, 36, 1240, 73240, 7171176, 1016813448, 198480110880, 50752206180576, 16460660622560680, 6595414427636900536, 3198428240666246044704, 1845848150787599809368856, 1250049326783769438348496480, 981653074459964543314138858320]

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

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