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.

A028305 Triangle of numbers of permutations eliminating just k cards out of n in game of Mousetrap.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 0
5 1
6 2
7 2
8 0
9 2
10 9
11 6
12 3
13 0
14 6
15 44
16 31
17 19
18 11
19 0
20 15
21 265
22 180
23 105
24 54
25 32
26 0
27 84
28 1854
29 1255
30 771
31 411
32 281
33 138
34 0
35 330
36 14833
37 9949
38 6052
39 3583
40 2057
41 1366
42 668
43 0
44 1812
45 133496
46 89162
47 55340
48 32135
49 19026
50 12685
51 6753
52 4305
53 0
54 9978
55 1334961
56 886837
57 547922
58 331930
59 193538
60 117323
61 79291
62 45536
63 25959
64 0
65 65503

List of values

[1, 0, 1, 1, 0, 1, 2, 2, 0, 2, 9, 6, 3, 0, 6, 44, 31, 19, 11, 0, 15, 265, 180, 105, 54, 32, 0, 84, 1854, 1255, 771, 411, 281, 138, 0, 330, 14833, 9949, 6052, 3583, 2057, 1366, 668, 0, 1812, 133496, 89162, 55340, 32135, 19026, 12685, 6753, 4305, 0, 9978, 1334961, 886837, 547922, 331930, 193538, 117323, 79291, 45536, 25959, 0, 65503]