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A155272 as a simple table

n a(n)
4 1
5 7
6 19
7 52
8 260
9 1220
10 7357
11 60311
12 545790
13 5982967
14 83324072
15 1383688085
16 28070423509
17 700749741616

[1,7,19,52,260,1220,7357,60311,545790,5982967,
 83324072,1383688085,28070423509,700749741616]

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Last modified August 12 19:26 EDT 2024. Contains 375113 sequences. (Running on oeis4.)