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A146680 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 9
9 20
10 33
11 56
12 137
13 404
14 1209
15 4087
16 15733
17 60343
18 254309
19 1153606
20 5642466
21 31006709
22 182836767
23 1183007758
24 8378875432
25 64857203324 

[1,1,1,1,1,1,1,9,20,33,56,137,404,1209,4087,15733,
 60343,254309,1153606,5642466,31006709,182836767,
 1183007758,8378875432,64857203324]

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Last modified August 6 07:28 EDT 2024. Contains 374960 sequences. (Running on oeis4.)