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A155304 as a simple table

n a(n)
4 1
5 13
6 37
7 73
8 309
9 2413
10 28415
11 205131
12 1898471
13 29029014
14 631146446
15 14579044094
16 368315888227
17 12424744049760
18 572778669577292

[1,13,37,73,309,2413,28415,205131,1898471,
 29029014,631146446,14579044094,368315888227,
 12424744049760,572778669577292]

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Last modified May 28 07:01 EDT 2022. Contains 354112 sequences. (Running on oeis4.)