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A321099 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 2
7 5
8 18
9 61
10 229
11 879
12 3588
13 15283
14 68029
15 314985
16 1512982
17 7523664
18 38653397
19 204844184
20 1118152388
21 6278617770
22 36225373016
23 214531854676
24 1302820719810
25 8106006393514
26 51629965051190
27 336384879743751
28 2240263173545424
29 15240406795991028
30 105840760976497158
31 749907226527126570

[1,1,1,1,1,1,2,5,18,61,229,879,3588,15283,68029,
 314985,1512982,7523664,38653397,204844184,
 1118152388,6278617770,36225373016,214531854676,
 1302820719810,8106006393514,51629965051190,
 336384879743751,2240263173545424,
 15240406795991028,105840760976497158,
 749907226527126570]

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Last modified April 23 12:08 EDT 2024. Contains 371912 sequences. (Running on oeis4.)