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A148821 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 26
5 92
6 327
7 1193
8 4562
9 17685
10 69588
11 279436
12 1133916
13 4641173
14 19219142
15 80216046
16 336914408
17 1425417925
18 6066920841
19 25945712001
20 111518261524
21 481520271363
22 2087017917106
23 9079448783803
24 39640509733005
25 173602219516008
26 762503437509516
27 3358590618438060
28 14831233518450775

[1,1,3,8,26,92,327,1193,4562,17685,69588,279436,
 1133916,4641173,19219142,80216046,336914408,
 1425417925,6066920841,25945712001,111518261524,
 481520271363,2087017917106,9079448783803,
 39640509733005,173602219516008,762503437509516,
 3358590618438060,14831233518450775]

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Last modified April 26 20:34 EDT 2024. Contains 372004 sequences. (Running on oeis4.)