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A139263 as a simple table

n a(n)
0 0
1 0
2 1
3 3
4 14
5 48
6 172
7 580
8 1941
9 6373
10 20725
11 66763
12 213575
13 679141
14 2148948
15 6771068
16 21257741
17 66529077
18 207639925
19 646480555
20 2008458669
21 6227766899
22 19277394308
23 59577651108
24 183865477474
25 566700165898
26 1744578701517
27 5364804428455
28 16480883532586
29 50582859417868
30 155114365434224

[0,0,1,3,14,48,172,580,1941,6373,20725,66763,
 213575,679141,2148948,6771068,21257741,66529077,
 207639925,646480555,2008458669,6227766899,
 19277394308,59577651108,183865477474,566700165898,
 1744578701517,5364804428455,16480883532586,
 50582859417868,155114365434224]

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Last modified August 11 10:58 EDT 2024. Contains 375068 sequences. (Running on oeis4.)