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A107319 as a simple table

n a(n)
0 1
1 63
2 1260
3 13860
4 103950
5 594594
6 2774772
7 11042460
8 38648610
9 121671550
10 350414064
11 935402832
12 2338507080
13 5521090680
14 12394285200
15 26606398896
16 54875697723
17 109181751525
18 210275965900
19 393175282500
20 715579014150

[1,63,1260,13860,103950,594594,2774772,11042460,
 38648610,121671550,350414064,935402832,2338507080,
 5521090680,12394285200,26606398896,54875697723,
 109181751525,210275965900,393175282500,
 715579014150]

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Last modified August 10 03:47 EDT 2020. Contains 336368 sequences. (Running on oeis4.)