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A284843 as a simple table

n a(n)
1 3
2 12
3 55
4 318
5 2163
6 16952
7 150183
8 1483290
9 16153027
10 192234372
11 2481692343
12 34538108822
13 515428409715
14 8210201868528
15 139028223047143
16 2493848817565362
17 47236883312958723
18 942120664413581180
19 19735072617803491767
20 433187081497364626542 

[3,12,55,318,2163,16952,150183,1483290,16153027,
 192234372,2481692343,34538108822,515428409715,
 8210201868528,139028223047143,2493848817565362,
 47236883312958723,942120664413581180,
 19735072617803491767,433187081497364626542]

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)