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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.

A271705 Triangle read by rows, T(n,k) = Sum_{j=0..n} C(n,j)*L(j,k), L the unsigned Lah numbers A271703, for n>=0 and 0<=k<=n.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 4
5 1
6 1
7 15
8 9
9 1
10 1
11 64
12 66
13 16
14 1
15 1
16 325
17 490
18 190
19 25
20 1
21 1
22 1956
23 3915
24 2120
25 435
26 36
27 1
28 1
29 13699
30 34251
31 23975
32 6755
33 861
34 49
35 1
36 1
37 109600
38 328804
39 283136
40 101990
41 17696
42 1540
43 64
44 1
45 1
46 986409
47 3452436
48 3534636
49 1554966
50 342846
51 40404
52 2556
53 81
54 1

List of values

[1, 1, 1, 1, 4, 1, 1, 15, 9, 1, 1, 64, 66, 16, 1, 1, 325, 490, 190, 25, 1, 1, 1956, 3915, 2120, 435, 36, 1, 1, 13699, 34251, 23975, 6755, 861, 49, 1, 1, 109600, 328804, 283136, 101990, 17696, 1540, 64, 1, 1, 986409, 3452436, 3534636, 1554966, 342846, 40404, 2556, 81, 1]