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A148443 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 16
5 47
6 157
7 507
8 1714
9 6074
10 21360
11 77241
12 284811
13 1051900
14 3954103
15 15003471
16 57201331
17 220534963
18 855038657
19 3332650936
20 13084082094
21 51582007825
22 204327262149
23 813393343533
24 3249188679150
25 13031012456908
26 52450320596046
27 211746189564692
28 857602778653967
29 3483222763555429

[1,1,2,6,16,47,157,507,1714,6074,21360,77241,
 284811,1051900,3954103,15003471,57201331,
 220534963,855038657,3332650936,13084082094,
 51582007825,204327262149,813393343533,
 3249188679150,13031012456908,52450320596046,
 211746189564692,857602778653967,3483222763555429]

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Last modified February 18 00:19 EST 2019. Contains 320237 sequences. (Running on oeis4.)