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.

A094573 Triangle T(n,k) giving number of (<=2)-covers of an n-set with k blocks.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 1
5 1
6 12
7 20
8 7
9 1
10 39
11 169
12 186
13 59
14 3
15 1
16 120
17 1160
18 2755
19 2243
20 661
21 55
22 1
23 363
24 7381
25 33270
26 52060
27 33604
28 9167
29 910
30 15
31 1
32 1092
33 45500
34 367087
35 988750
36 1126874
37 601262
38 151726
39 16401
40 525
41 1
42 3279
43 276529
44 3873786
45 17005149

List of values

[1, 1, 1, 3, 1, 1, 12, 20, 7, 1, 39, 169, 186, 59, 3, 1, 120, 1160, 2755, 2243, 661, 55, 1, 363, 7381, 33270, 52060, 33604, 9167, 910, 15, 1, 1092, 45500, 367087, 988750, 1126874, 601262, 151726, 16401, 525, 1, 3279, 276529, 3873786, 17005149]