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A232971 as a simple table

n a(n)
0 1
1 2
2 7
3 29
4 132
5 629
6 3061
7 15034
8 74131
9 366145
10 1809732
11 8947577
12 44243705
13 218786578
14 1081931151
15 5350356149
16 26458638660
17 130843764557
18 647051540301
19 3199814854026
20 15823803449275
21 78252267828921
22 386975076995972
23 1913678872087345
24 9463572870272049
25 46799498561863842
26 231434057435235031

[1,2,7,29,132,629,3061,15034,74131,366145,1809732,
 8947577,44243705,218786578,1081931151,5350356149,
 26458638660,130843764557,647051540301,
 3199814854026,15823803449275,78252267828921,
 386975076995972,1913678872087345,9463572870272049,
 46799498561863842,231434057435235031]

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Last modified January 25 08:01 EST 2021. Contains 340416 sequences. (Running on oeis4.)