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.

A341093 Triangular array read by rows. T(n,k) is the number of partial functions on [n] with index k, n=0 implies k=1, otherwise n >= 1, 1 <= k <= n.

Table of values

n a(n)
0 1
1 2
2 7
3 2
4 37
5 21
6 6
7 261
8 232
9 108
10 24
11 2301
12 2935
13 1760
14 660
15 120
16 24343
17 42396
18 30630
19 14880
20 4680
21 720
22 300455
23 692055
24 586572
25 335790
26 139440
27 37800
28 5040
29 4238153
30 12631200
31 12387592
32 8008896
33 3959760
34 1438080
35 342720
36 40320

List of values

[1, 2, 7, 2, 37, 21, 6, 261, 232, 108, 24, 2301, 2935, 1760, 660, 120, 24343, 42396, 30630, 14880, 4680, 720, 300455, 692055, 586572, 335790, 139440, 37800, 5040, 4238153, 12631200, 12387592, 8008896, 3959760, 1438080, 342720, 40320]