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A024425 as a simple table

n a(n)
1 1
2 1
3 1
4 2
5 4
6 9
7 17
8 48
9 111
10 337
11 979
12 2985
13 10088
14 36967
15 122579
16 510005
17 1997521
18 8122685
19 35165590
20 164226684
21 717221715
22 3521142515
23 17464573214
24 89212733530
25 444931206696
26 2538229596916
27 13768154770823

[1,1,1,2,4,9,17,48,111,337,979,2985,10088,36967,
 122579,510005,1997521,8122685,35165590,164226684,
 717221715,3521142515,17464573214,89212733530,
 444931206696,2538229596916,13768154770823]

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Last modified April 22 00:17 EDT 2024. Contains 371886 sequences. (Running on oeis4.)