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A057418 as a simple table

n a(n)
7 1
8 6
9 37
10 195
11 975
12 4622
13 21128
14 94109
15 410820
16 1766591
17 7506179
18 31596240
19 131991619
20 547992183
21 2263477612
22 9309386178
23 38150082057
24 155859235424
25 635067478628
26 2581737704039

[1,6,37,195,975,4622,21128,94109,410820,1766591,
 7506179,31596240,131991619,547992183,2263477612,
 9309386178,38150082057,155859235424,635067478628,
 2581737704039]

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Last modified April 23 05:34 EDT 2021. Contains 343199 sequences. (Running on oeis4.)