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A107863 as a simple table

n a(n)
0 1
1 2
2 10
3 84
4 1001
5 15504
6 296010
7 6724520
8 177232627
9 5317936260
10 179013799328
11 6681687099710
12 273897571557780
13 12233149001721760
14 591315394579074378
15 30756373941461374800
16 1712879663609111933495
17 101696990867999141755140

[1,2,10,84,1001,15504,296010,6724520,177232627,
 5317936260,179013799328,6681687099710,
 273897571557780,12233149001721760,
 591315394579074378,30756373941461374800,
 1712879663609111933495,101696990867999141755140]

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Last modified June 1 19:28 EDT 2024. Contains 373028 sequences. (Running on oeis4.)