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A069728 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 6
6 19
7 64
8 230
9 865
10 3364
11 13443
12 54938
13 228749
14 967628
15 4149024
16 18000758
17 78905518
18 349037335
19 1556494270
20 6991433386
21 31609302688
22 143755711433
23 657301771172
24 3020175361634
25 13939605844996
26 64604720622719

[1,1,1,1,2,6,19,64,230,865,3364,13443,54938,
 228749,967628,4149024,18000758,78905518,349037335,
 1556494270,6991433386,31609302688,143755711433,
 657301771172,3020175361634,13939605844996,
 64604720622719]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)