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A148036 as a simple table

n a(n)
0 1
1 1
2 2
3 3
4 8
5 17
6 55
7 137
8 475
9 1281
10 4671
11 13561
12 51649
13 158164
14 619616
15 1970703
16 7889055
17 25897272
18 105597628
19 355925249
20 1472958168
21 5073075343
22 21248105272
23 74525835058
24 315355167249
25 1123653233699
26 4796820059745
27 17327386969144
28 74532011152878
29 272468321876405
30 1179733310810498
31 4358597694512184

[1,1,2,3,8,17,55,137,475,1281,4671,13561,51649,
 158164,619616,1970703,7889055,25897272,105597628,
 355925249,1472958168,5073075343,21248105272,
 74525835058,315355167249,1123653233699,
 4796820059745,17327386969144,74532011152878,
 272468321876405,1179733310810498,4358597694512184]

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Last modified September 25 00:48 EDT 2020. Contains 337333 sequences. (Running on oeis4.)