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A180287 as a simple table

n a(n)
7 7
8 56
9 324
10 1650
11 7865
12 36036
13 160888
14 705341
15 3050775
16 13058840
17 55439448
18 233792568
19 980496216
20 4093094950
21 17019665530
22 70531676215
23 291437684571
24 1201142528876
25 4939265410000
26 20270259161100
27 83038283251560
28 339624292672665
29 1387038195648525

[7,56,324,1650,7865,36036,160888,705341,3050775,
 13058840,55439448,233792568,980496216,4093094950,
 17019665530,70531676215,291437684571,
 1201142528876,4939265410000,20270259161100,
 83038283251560,339624292672665,1387038195648525]

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Last modified April 24 18:05 EDT 2024. Contains 371962 sequences. (Running on oeis4.)