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A121650 as a simple table

n a(n)
0 1
1 1
2 3
3 8
4 27
5 89
6 300
7 1008
8 3563
9 12483
10 44583
11 158600
12 572548
13 2057792
14 7451924
15 26913176
16 98321435
17 358017691
18 1312060393
19 4797471336
20 17666696455
21 64890598361
22 239454075896
23 881886659872
24 3264772507980
25 12061404124676

[1,1,3,8,27,89,300,1008,3563,12483,44583,158600,
 572548,2057792,7451924,26913176,98321435,
 358017691,1312060393,4797471336,17666696455,
 64890598361,239454075896,881886659872,
 3264772507980,12061404124676]

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Last modified April 16 01:40 EDT 2024. Contains 371696 sequences. (Running on oeis4.)