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A033995 as a simple table

n a(n)
0 1
1 1
2 2
3 3
4 7
5 13
6 35
7 88
8 303
9 1119
10 5479
11 32303
12 251135
13 2527712
14 33985853
15 611846940
16 14864650924
17 488222721992
18 21712049275198
19 1308300679611469
20 106897965189674291
21 11852113048215107822
22 1784730721403509209215
23 365323537513403184463273

[1,1,2,3,7,13,35,88,303,1119,5479,32303,251135,
 2527712,33985853,611846940,14864650924,
 488222721992,21712049275198,1308300679611469,
 106897965189674291,11852113048215107822,
 1784730721403509209215,365323537513403184463273]

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Last modified May 27 00:30 EDT 2024. Contains 372847 sequences. (Running on oeis4.)