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A215694 as a simple table

n a(n)
0 1
1 2
2 7
3 24
4 80
5 263
6 859
7 2797
8 9094
9 29547
10 95968
11 311652
12 1011999
13 3286051
14 10669913
15 34645258
16 112492863
17 365262680
18 1186001480
19 3850924183
20 12503874715
21 40599829957
22 131826825678
23 428039023363
24 1389833992704
25 4512762649020
26 14652848312239
27 47577499659779
28 154483171074481
29 501603705725970
30 1628697001842743

[1,2,7,24,80,263,859,2797,9094,29547,95968,311652,
 1011999,3286051,10669913,34645258,112492863,
 365262680,1186001480,3850924183,12503874715,
 40599829957,131826825678,428039023363,
 1389833992704,4512762649020,14652848312239,
 47577499659779,154483171074481,501603705725970,
 1628697001842743]

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Last modified May 31 00:53 EDT 2020. Contains 334747 sequences. (Running on oeis4.)