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A175204 as a simple table

n a(n)
2 1
3 2
4 4
5 10
6 20
7 68
8 154
9 644
10 2210
11 6578
12 35308
13 92378
14 310154
15 1042404
16 5617820
17 35515634
18 184055430
19 1082950218
20 5386096364
21 19304763268
22 254772473240
23 1383442606194

[1,2,4,10,20,68,154,644,2210,6578,35308,92378,
 310154,1042404,5617820,35515634,184055430,
 1082950218,5386096364,19304763268,254772473240,
 1383442606194]

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Last modified August 13 04:16 EDT 2024. Contains 375113 sequences. (Running on oeis4.)