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A318087 as a simple table

n a(n)
1 1
2 3
3 7
4 47
5 159
6 547
7 1976
8 8031
9 32040
10 126847
11 497430
12 1956777
13 7702762
14 30347033
15 119531416
16 470732127
17 1853881221
18 7300825094
19 28753367787
20 113237861964
21 445967783236
22 1756341155437
23 6916999603444
24 27241103834694
25 107283461298615

[1,3,7,47,159,547,1976,8031,32040,126847,497430,
 1956777,7702762,30347033,119531416,470732127,
 1853881221,7300825094,28753367787,113237861964,
 445967783236,1756341155437,6916999603444,
 27241103834694,107283461298615]

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Last modified October 16 04:54 EDT 2021. Contains 348035 sequences. (Running on oeis4.)