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A223712 as a simple table

n a(n)
1 7
2 53
3 333
4 1805
5 8953
6 41389
7 180718
8 757748
9 3072208
10 12100344
11 46606802
12 176082080
13 653863108
14 2394225532
15 8658131447
16 30954618019
17 109609761829
18 384756220575
19 1339683464511
20 4632090161405
21 15913128409903
22 54338332894979

[7,53,333,1805,8953,41389,180718,757748,3072208,
 12100344,46606802,176082080,653863108,2394225532,
 8658131447,30954618019,109609761829,384756220575,
 1339683464511,4632090161405,15913128409903,
 54338332894979]

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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)