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A336538 as a simple table

n a(n)
0 1
1 3
2 30
3 408
4 6402
5 109137
6 1964010
7 36718680
8 706221210
9 13883562732
10 277730910840
11 5635185129696
12 115693119210270
13 2398955889524934
14 50167967688522012
15 1056869531313301200
16 22407983968252808586
17 477791976566108489700
18 10238908702033904618856
19 220401923906465000263200
20 4763512100782704414532296

[1,3,30,408,6402,109137,1964010,36718680,
 706221210,13883562732,277730910840,5635185129696,
 115693119210270,2398955889524934,
 50167967688522012,1056869531313301200,
 22407983968252808586,477791976566108489700,
 10238908702033904618856,220401923906465000263200,
 4763512100782704414532296]

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Last modified June 4 17:14 EDT 2024. Contains 373102 sequences. (Running on oeis4.)