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A144819 as a simple table

n a(n)
1 1
2 1
3 6
4 36
5 231
6 1386
7 8496
8 50976
9 306956
10 1842276
11 11060586
12 66363516
13 398229516
14 2389377096
15 14336517456
16 86019146316
17 516116428791
18 3096698572746
19 18580200896796
20 111481205380776
21 668887287816276

[1,1,6,36,231,1386,8496,50976,306956,1842276,
 11060586,66363516,398229516,2389377096,
 14336517456,86019146316,516116428791,
 3096698572746,18580200896796,111481205380776,
 668887287816276]

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Last modified June 12 19:17 EDT 2021. Contains 344959 sequences. (Running on oeis4.)