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A050546
as a simple table
n
a(n)
1
2
2
10
3
14
4
18
5
50
6
114
7
122
8
294
9
362
10
554
11
582
12
638
13
758
14
3334
15
6630
16
42450
17
64218
18
89282
19
149238
20
511718
[2,10,14,18,50,114,122,294,362,554,582,638,758, 3334,6630,42450,64218,89282,149238,511718]