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A117271 as a simple table

n a(n)
0 0
1 1
2 2
3 12
4 134
5 2100
6 42302
7 1041852
8 30331814
9 1019056260
10 38805685262
11 1651676734092
12 77703508288694
13 4003868870257620
14 224255353667365022
15 13565588100060643932
16 881405810330856632774
17 61218510507062012550180

[0,1,2,12,134,2100,42302,1041852,30331814,
 1019056260,38805685262,1651676734092,
 77703508288694,4003868870257620,
 224255353667365022,13565588100060643932,
 881405810330856632774,61218510507062012550180]

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Last modified September 25 02:35 EDT 2023. Contains 365582 sequences. (Running on oeis4.)