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.

A285239 Number of entries in the n-th cycles of all permutations of [2n].

Table of values

n a(n)
1 3
2 27
3 463
4 12217
5 441383
6 20338679
7 1141073295
8 75473055841
9 5748862140283
10 495446888127507
11 47648289796265871
12 5057570671179281161
13 587173799850231036207
14 74005641366738437835967
15 10062023872139208015273375
16 1467822867614662009540883265

List of values

[3, 27, 463, 12217, 441383, 20338679, 1141073295, 75473055841, 5748862140283, 495446888127507, 47648289796265871, 5057570671179281161, 587173799850231036207, 74005641366738437835967, 10062023872139208015273375, 1467822867614662009540883265]

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

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