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A148442 as a simple table

n a(n)
0 1
1 1
2 2
3 6
4 16
5 46
6 155
7 501
8 1686
9 5991
10 21017
11 76040
12 280654
13 1035640
14 3896052
15 14780804
16 56362934
17 217403028
18 842891300
19 3286540585
20 12904895803
21 50886586718
22 201628355072
23 802775113349
24 3207600418058
25 12866424867935
26 51798254861305
27 209156221493593
28 847252559115452
29 3441859987736618

[1,1,2,6,16,46,155,501,1686,5991,21017,76040,
 280654,1035640,3896052,14780804,56362934,
 217403028,842891300,3286540585,12904895803,
 50886586718,201628355072,802775113349,
 3207600418058,12866424867935,51798254861305,
 209156221493593,847252559115452,3441859987736618]

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Last modified March 19 23:02 EDT 2019. Contains 321343 sequences. (Running on oeis4.)