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A203864 as a simple table

n a(n)
1 1648
2 21635
3 210190
4 1605552
5 10500903
6 59962757
7 309154358
8 1459797487
9 6416948063
10 26519347624
11 104007127796
12 389733297547
13 1403705680053
14 4882521376349
15 16468445276261
16 54047747618910
17 173099841345451

[1648,21635,210190,1605552,10500903,59962757,
 309154358,1459797487,6416948063,26519347624,
 104007127796,389733297547,1403705680053,
 4882521376349,16468445276261,54047747618910,
 173099841345451]

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Last modified October 28 15:26 EDT 2021. Contains 348329 sequences. (Running on oeis4.)