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A307217 as a simple table

n a(n)
1 9
2 15
3 35
4 119
5 5543
6 74447
7 90859
8 110767
9 222179
10 389993
11 1526849
12 2927297
13 3626699
14 4559939
15 24017531
16 137051711
17 160832099
18 229731743
19 627699239
20 880021141
21 1001124539
22 1041287603
23 1104903617
24 1592658611
25 1717999139
26 8843679683
27 15575602979
28 15614760199
29 20374337479

[9,15,35,119,5543,74447,90859,110767,222179,
 389993,1526849,2927297,3626699,4559939,24017531,
 137051711,160832099,229731743,627699239,880021141,
 1001124539,1041287603,1104903617,1592658611,
 1717999139,8843679683,15575602979,15614760199,
 20374337479]

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Last modified September 16 20:53 EDT 2024. Contains 375977 sequences. (Running on oeis4.)