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A235232 as a simple table

n a(n)
1 120
2 420
3 1328
4 4652
5 14944
6 52468
7 170864
8 601100
9 1980544
10 6979348
11 23223440
12 81953324
13 274931488
14 971325748
15 3280518320
16 11600884556
17 39397352128
18 139427487316
19 475663660496
20 1684432450412
21 5768254899040
22 20437259824756

[120,420,1328,4652,14944,52468,170864,601100,
 1980544,6979348,23223440,81953324,274931488,
 971325748,3280518320,11600884556,39397352128,
 139427487316,475663660496,1684432450412,
 5768254899040,20437259824756]

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Last modified July 31 22:39 EDT 2021. Contains 346377 sequences. (Running on oeis4.)