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A211248 as a simple table

n a(n)
0 1
1 1
2 4
3 20
4 114
5 703
6 4565
7 30752
8 212921
9 1505916
10 10833164
11 79018804
12 583062388
13 4344431508
14 32641910199
15 247033970128
16 1881402836376
17 14408753414558
18 110897147057354
19 857307054338476
20 6653979156676983
21 51831065993122915
22 405060413133136902
23 3175019470333290488

[1,1,4,20,114,703,4565,30752,212921,1505916,
 10833164,79018804,583062388,4344431508,
 32641910199,247033970128,1881402836376,
 14408753414558,110897147057354,857307054338476,
 6653979156676983,51831065993122915,
 405060413133136902,3175019470333290488]

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)