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A301578 as a simple table

n a(n)
0 1
1 1
2 3
3 12
4 48
5 211
6 970
7 4594
8 22311
9 110473
10 555561
11 2829918
12 14570666
13 75708835
14 396481070
15 2090558864
16 11089276706
17 59135014252
18 316836936662
19 1704764660218
20 9207671377450
21 49904141524184
22 271325301723223
23 1479427708380368
24 8088057338101442
25 44325245804200151

[1,1,3,12,48,211,970,4594,22311,110473,555561,
 2829918,14570666,75708835,396481070,2090558864,
 11089276706,59135014252,316836936662,
 1704764660218,9207671377450,49904141524184,
 271325301723223,1479427708380368,8088057338101442,
 44325245804200151]

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Last modified October 15 00:04 EDT 2019. Contains 328025 sequences. (Running on oeis4.)