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A155415 as a simple table

n a(n)
6 1
7 7
8 19
9 46
10 127
11 385
12 1900
13 9866
14 51376
15 316958
16 2204777
17 18653197
18 179171339
19 1914846570 

[1,7,19,46,127,385,1900,9866,51376,316958,2204777,
 18653197,179171339,1914846570]

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Last modified August 12 15:11 EDT 2024. Contains 375113 sequences. (Running on oeis4.)