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A087860 as a simple table

n a(n)
0 0
1 1
2 3
3 10
4 39
5 176
6 905
7 5244
8 34111
9 250480
10 2108529
11 20751380
12 241315151
13 3282366504
14 50786289385
15 865850559196
16 15856276032255
17 306665879765984
18 6199863566817761
19 130237717066988580
20 2832527601333186319

[0,1,3,10,39,176,905,5244,34111,250480,2108529,
 20751380,241315151,3282366504,50786289385,
 865850559196,15856276032255,306665879765984,
 6199863566817761,130237717066988580,
 2832527601333186319]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)