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A007822 as a simple table

n a(n)
1 1
2 1
3 3
4 9
5 28
6 89
7 287
8 935
9 3072
10 10157
11 33767
12 112736
13 377836
14 1270203
15 4282311
16 14470629
17 49005732
18 166261653
19 565055147
20 1923186472
21 6554868916
22 22367933148
23 76417819396
24 261335128098
25 894597454360
26 3064970675173

[1,1,3,9,28,89,287,935,3072,10157,33767,112736,
 377836,1270203,4282311,14470629,49005732,
 166261653,565055147,1923186472,6554868916,
 22367933148,76417819396,261335128098,894597454360,
 3064970675173]

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Last modified August 18 08:57 EDT 2019. Contains 326077 sequences. (Running on oeis4.)