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A155412 as a simple table

n a(n)
5 1
6 7
7 19
8 37
9 67
10 231
11 1339
12 8869
13 45413
14 237925
15 1625066
16 15388021
17 179623547
18 2180692829
19 28227148274
20 428766984919

[1,7,19,37,67,231,1339,8869,45413,237925,1625066,
 15388021,179623547,2180692829,28227148274,
 428766984919]

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Last modified September 30 01:59 EDT 2022. Contains 357095 sequences. (Running on oeis4.)