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A178321
as a simple table
n
a(n)
1
1
2
2
3
15
4
74
5
278
6
541
7
668
8
1320
9
1780
10
1874
11
4824
12
13310
13
20420
14
24887
[1,2,15,74,278,541,668,1320,1780,1874,4824,13310, 20420,24887]
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Last modified April 19 21:09 EDT 2024. Contains 371798 sequences. (Running on oeis4.)