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A268258 as a simple table

n a(n)
1 31
2 161
3 837
4 4357
5 22710
6 118530
7 619490
8 3242265
9 16993552
10 89197862
11 468891563
12 2468601733
13 13016765331
14 68745010766
15 363645146551
16 1926748983131
17 10225750976768
18 54362543336048
19 289501143028324
20 1544393456553619

[31,161,837,4357,22710,118530,619490,3242265,
 16993552,89197862,468891563,2468601733,
 13016765331,68745010766,363645146551,
 1926748983131,10225750976768,54362543336048,
 289501143028324,1544393456553619]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)