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A148783 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 24
5 76
6 251
7 838
8 2926
9 10169
10 36400
11 130395
12 474831
13 1733605
14 6403971
15 23684098
16 88447620
17 330426207
18 1243990000
19 4685124726
20 17751802480
21 67287467042
22 256301925243
23 976546214354
24 3736114526010
25 14296501505222
26 54897699531735
27 210834772852983
28 812124034397346
29 3128637177989858

[1,1,3,8,24,76,251,838,2926,10169,36400,130395,
 474831,1733605,6403971,23684098,88447620,
 330426207,1243990000,4685124726,17751802480,
 67287467042,256301925243,976546214354,
 3736114526010,14296501505222,54897699531735,
 210834772852983,812124034397346,3128637177989858]

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Last modified January 22 02:46 EST 2022. Contains 350481 sequences. (Running on oeis4.)