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A330021 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 25
5 128
6 754
7 5001
8 37048
9 303930
10 2732395
11 26657106
12 280039786
13 3149224991
14 37729906686
15 479570263690
16 6442902231289
17 91186621152460
18 1355582225366134
19 21112253012491481
20 343672026658191836
21 5834977672879651390
22 103130592695715620419

[1,1,2,6,25,128,754,5001,37048,303930,2732395,
 26657106,280039786,3149224991,37729906686,
 479570263690,6442902231289,91186621152460,
 1355582225366134,21112253012491481,
 343672026658191836,5834977672879651390,
 103130592695715620419]

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