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.

A268567 Number of immersions of oriented circle into oriented sphere with n labeled double points.

Table of values

n a(n)
1 1
2 4
3 42
4 780
5 21552
6 803760
7 38054160
8 2194345440
9 149604053760
10 11794431720960
11 1056927459571200
12 106197377365094400
13 11831983152533913600
14 1448373107312190259200
15 193295730632526147225600
16 27939600631552720061952000
17 4349183288219555957563392000

List of values

[1, 4, 42, 780, 21552, 803760, 38054160, 2194345440, 149604053760, 11794431720960, 1056927459571200, 106197377365094400, 11831983152533913600, 1448373107312190259200, 193295730632526147225600, 27939600631552720061952000, 4349183288219555957563392000]

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

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