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A317819 as a simple table

n a(n)
1 2
2 50
3 135
4 702
5 2726
6 11768
7 48526
8 203049
9 846901
10 3533862
11 14751288
12 61572336
13 256988741
14 1072703816
15 4477368403
16 18688452762
17 78005403965
18 325591740543
19 1359014862402
20 5672494506043
21 23676864307080
22 98826717050870

[2,50,135,702,2726,11768,48526,203049,846901,
 3533862,14751288,61572336,256988741,1072703816,
 4477368403,18688452762,78005403965,325591740543,
 1359014862402,5672494506043,23676864307080,
 98826717050870]

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Last modified March 1 12:07 EST 2024. Contains 370433 sequences. (Running on oeis4.)