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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.

A276844 Number of permutations of [n] such that for each cycle c the smallest integer interval containing all elements of c has at most ten elements.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 24
5 120
6 720
7 5040
8 40320
9 362880
10 3628800
11 19958400
12 99792000
13 492972480
14 2475673200
15 12794581800
16 68438391840
17 379887726960
18 2190484006290
19 13122638916147
20 81648757479285
21 485188719524460
22 2787398328848820
23 15702226260438924
24 87625414510220472

List of values

[1, 1, 2, 6, 24, 120, 720, 5040, 40320, 362880, 3628800, 19958400, 99792000, 492972480, 2475673200, 12794581800, 68438391840, 379887726960, 2190484006290, 13122638916147, 81648757479285, 485188719524460, 2787398328848820, 15702226260438924, 87625414510220472]

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

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