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A004130 as a simple table

n a(n)
0 1
1 1
2 5
3 15
4 195
5 663
6 4641
7 16575
8 480675
9 1762475
10 13042315
11 48612265
12 729183975
13 2748462675
14 20809788825
15 79077197535
16 4823709049635
17 18443593425075
18 141400882925575
19 543277076503525
20 8366466978154285
21 32270658344309385

[1,1,5,15,195,663,4641,16575,480675,1762475,
 13042315,48612265,729183975,2748462675,
 20809788825,79077197535,4823709049635,
 18443593425075,141400882925575,543277076503525,
 8366466978154285,32270658344309385]

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Last modified April 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)