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A288268 as a simple table

n a(n)
0 1
1 0
2 1
3 4
4 21
5 136
6 1045
7 9276
8 93289
9 1047376
10 12975561
11 175721140
12 2581284541
13 40864292184
14 693347907421
15 12548540320876
16 241253367679185
17 4909234733857696
18 105394372192969489
19 2380337795595885156
20 56410454014314490981
21 1399496554158060983080

[1,0,1,4,21,136,1045,9276,93289,1047376,12975561,
 175721140,2581284541,40864292184,693347907421,
 12548540320876,241253367679185,4909234733857696,
 105394372192969489,2380337795595885156,
 56410454014314490981,1399496554158060983080]

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Last modified March 29 10:44 EDT 2024. Contains 371268 sequences. (Running on oeis4.)