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A101220 as a simple table

n a(n)
0 0
1 1
2 3
3 14
4 91
5 820
6 9650
7 140601
8 2440317
9 49109632
10 1123595495
11 28792920872
12 816742025772
13 25402428294801
14 859492240650847
15 31427791175659690
16 1234928473553777403
17 51893300561135516404
18 2322083099525697299278

[0,1,3,14,91,820,9650,140601,2440317,49109632,
 1123595495,28792920872,816742025772,
 25402428294801,859492240650847,31427791175659690,
 1234928473553777403,51893300561135516404,
 2322083099525697299278]

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Last modified November 17 08:17 EST 2018. Contains 317275 sequences. (Running on oeis4.)