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A129171 as a simple table

n a(n)
0 0
1 1
2 6
3 32
4 165
5 840
6 4251
7 21443
8 107946
9 542680
10 2725635
11 13679997
12 68623176
13 344090307
14 1724754180
15 8642952000
16 43300971885
17 216895107480
18 1086253033035
19 5439405705125
20 27234492215400
21 136345625309965
22 682531666024170

[0,1,6,32,165,840,4251,21443,107946,542680,
 2725635,13679997,68623176,344090307,1724754180,
 8642952000,43300971885,216895107480,1086253033035,
 5439405705125,27234492215400,136345625309965,
 682531666024170]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)