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A123801
as a simple table
n
a(n)
1
1
2
4
3
7
4
31
5
76
6
365
7
920
8
4691
9
12695
10
65708
11
184458
12
967195
13
2798734
14
14837523
15
43829052
16
234029147
17
703643181
[1,4,7,31,76,365,920,4691,12695,65708,184458, 967195,2798734,14837523,43829052,234029147, 703643181]
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Last modified September 2 10:42 EDT 2024. Contains 375613 sequences. (Running on oeis4.)