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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.

A028306 Triangle read by rows of numbers of permutations eliminating just card k out of n in game of Mousetrap.

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 0
5 1
6 2
7 1
8 1
9 2
10 9
11 5
12 5
13 3
14 9
15 44
16 31
17 25
18 20
19 16
20 44
21 265
22 203
23 167
24 142
25 117
26 96
27 265
28 1854
29 1501
30 1267
31 1075
32 932
33 791
34 675
35 1854
36 14833
37 12449
38 10745
39 9311
40 8241
41 7132
42 6205
43 5413
44 14833
45 133496
46 114955
47 101005
48 88993
49 78607
50 70340
51 62141

List of values

[1, 0, 0, 1, 0, 1, 2, 1, 1, 2, 9, 5, 5, 3, 9, 44, 31, 25, 20, 16, 44, 265, 203, 167, 142, 117, 96, 265, 1854, 1501, 1267, 1075, 932, 791, 675, 1854, 14833, 12449, 10745, 9311, 8241, 7132, 6205, 5413, 14833, 133496, 114955, 101005, 88993, 78607, 70340, 62141]

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

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