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A087108 as a simple table

n a(n)
1 1
2 1
3 4
4 6
5 4
6 1
7 1
8 24
9 176
10 624
11 1251
12 1500
13 1070
14 420
15 70
16 1
17 124
18 3126
19 33124
20 191251
21 681000
22 1596120
23 2543520
24 2780820
25 2058000
26 987000
27 277200
28 34650
29 1
30 624
31 49376
32 1350624
33 18308751
34 146500500
35 763418870
36 2749648020
37 7101675070
38 13440210000

[1,1,4,6,4,1,1,24,176,624,1251,1500,1070,420,70,1,
 124,3126,33124,191251,681000,1596120,2543520,
 2780820,2058000,987000,277200,34650,1,624,49376,
 1350624,18308751,146500500,763418870,2749648020,
 7101675070,13440210000]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)