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A139126 as a simple table

n a(n)
1 0
2 7
3 7
4 18
5 19
6 90
7 91
8 271
9 1751
10 18807
11 56589
12 56589
13 56589
14 56589
15 899791
16 899791
17 2814790
18 7635171
19 7635171
20 39727671
21 99530619
22 233093807
23 233093807
24 233093807
25 233093807

[0,7,7,18,19,90,91,271,1751,18807,56589,56589,
 56589,56589,899791,899791,2814790,7635171,7635171,
 39727671,99530619,233093807,233093807,233093807,
 233093807]

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Last modified September 5 21:36 EDT 2024. Contains 375700 sequences. (Running on oeis4.)