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A213745 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 1
7 3
8 6
9 10
10 1
11 4
12 10
13 20
14 35
15 1
16 5
17 15
18 35
19 70
20 126
21 1
22 6
23 21
24 56
25 126
26 252
27 462
28 1
29 7
30 28
31 84
32 210
33 462
34 924
35 1709
36 1
37 8
38 36
39 120
40 330
41 792
42 1716
43 3424
44 6371
45 1
46 9
47 45
48 165
49 495
50 1287
51 3003
52 6426
53 12789
54 23905
55 1
56 10

[1,1,1,1,2,3,1,3,6,10,1,4,10,20,35,1,5,15,35,70,
 126,1,6,21,56,126,252,462,1,7,28,84,210,462,924,
 1709,1,8,36,120,330,792,1716,3424,6371,1,9,45,165,
 495,1287,3003,6426,12789,23905,1,10]

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Last modified May 13 21:51 EDT 2024. Contains 372523 sequences. (Running on oeis4.)