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A281030 as a simple table

n a(n)
1 0
2 12
3 532
4 2324
5 9854
6 38972
7 146606
8 533340
9 1896352
10 6625144
11 22832024
12 77840640
13 263040538
14 882310796
15 2941006434
16 9750587480
17 32176182992
18 105744971236
19 346270006718
20 1130247359072
21 3678591411860
22 11941616925216

[0,12,532,2324,9854,38972,146606,533340,1896352,
 6625144,22832024,77840640,263040538,882310796,
 2941006434,9750587480,32176182992,105744971236,
 346270006718,1130247359072,3678591411860,
 11941616925216]

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Last modified July 20 07:46 EDT 2024. Contains 374442 sequences. (Running on oeis4.)