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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.

A129217 Permutations with exactly 9 fixed points.

Table of values

n a(n)
9 1
10 0
11 55
12 440
13 6435
14 88088
15 1326325
16 21209760
17 360590230
18 6490575520
19 123321027258
20 2466420377200
21 51794828215130
22 1139486220235440
23 26208183066232310
24 628996393588267936
25 15724909839708741375

List of values

[1, 0, 55, 440, 6435, 88088, 1326325, 21209760, 360590230, 6490575520, 123321027258, 2466420377200, 51794828215130, 1139486220235440, 26208183066232310, 628996393588267936, 15724909839708741375]

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

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