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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.

A240740 Number of compositions of n having exactly five fixed points.

Table of values

n a(n)
15 1
16 1
17 3
18 7
19 16
20 35
21 70
22 155
23 321
24 665
25 1368
26 2802
27 5711
28 11623
29 23526
30 47567
31 95967
32 193316
33 388893
34 781519
35 1569154
36 3148292
37 6313052
38 12652917
39 25349663
40 50770869
41 101658425
42 203506976
43 407323589
44 815151106
45 1631122032
46 3263576647
47 6529319168
48 13062156519

List of values

[1, 1, 3, 7, 16, 35, 70, 155, 321, 665, 1368, 2802, 5711, 11623, 23526, 47567, 95967, 193316, 388893, 781519, 1569154, 3148292, 6313052, 12652917, 25349663, 50770869, 101658425, 203506976, 407323589, 815151106, 1631122032, 3263576647, 6529319168, 13062156519]

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

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