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A107839 as a simple table

n a(n)
0 1
1 5
2 23
3 105
4 479
5 2185
6 9967
7 45465
8 207391
9 946025
10 4315343
11 19684665
12 89792639
13 409593865
14 1868384047
15 8522732505
16 38876894431
17 177339007145
18 808941246863
19 3690028220025
20 16832258606399
21 76781236591945
22 350241665746927

[1,5,23,105,479,2185,9967,45465,207391,946025,
 4315343,19684665,89792639,409593865,1868384047,
 8522732505,38876894431,177339007145,808941246863,
 3690028220025,16832258606399,76781236591945,
 350241665746927]

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Last modified July 14 16:05 EDT 2020. Contains 335729 sequences. (Running on oeis4.)