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A111004 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 16
5 63
6 296
7 1623
8 10176
9 71793
10 562848
11 4853949
12 45664896
13 465403791
14 5108121216
15 60069714207
16 753492215808
17 10042248398625
18 141712039383552
19 2110880441637045
20 33097631526180864
21 544903371859138335
22 9398216812334008320
23 169463659008217238055

[1,1,2,5,16,63,296,1623,10176,71793,562848,
 4853949,45664896,465403791,5108121216,60069714207,
 753492215808,10042248398625,141712039383552,
 2110880441637045,33097631526180864,
 544903371859138335,9398216812334008320,
 169463659008217238055]

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)