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A293967 as a simple table

n a(n)
11 6
12 48
13 274
14 1338
15 6035
16 25874
17 108002
18 444458
19 1818905
20 7451418
21 30693022
22 127604480
23 536876960
24 2291507552
25 9939572897
26 43885543586
27 197465168488
28 906430558822
29 4247727231198
30 20333276583188
31 99450038211268
32 497066503157976
33 2538584563166367

[6,48,274,1338,6035,25874,108002,444458,1818905,
 7451418,30693022,127604480,536876960,2291507552,
 9939572897,43885543586,197465168488,906430558822,
 4247727231198,20333276583188,99450038211268,
 497066503157976,2538584563166367]

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Last modified May 21 21:43 EDT 2022. Contains 353929 sequences. (Running on oeis4.)