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A339603 as a simple table

n a(n)
1 0
2 0
3 2
4 4
5 31
6 103
7 439
8 1665
9 6942
10 27598
11 110371
12 438843
13 1762848
14 7052170
15 28211223
16 112799719
17 451277874
18 1804973952
19 7220128542
20 28880086112
21 115521335176
22 462085087138
23 1848340368720
24 7393350063050
25 29573434659318
26 118293733260264
27 473174926753087

[0,0,2,4,31,103,439,1665,6942,27598,110371,438843,
 1762848,7052170,28211223,112799719,451277874,
 1804973952,7220128542,28880086112,115521335176,
 462085087138,1848340368720,7393350063050,
 29573434659318,118293733260264,473174926753087]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)