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A293740 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 20
5 54
6 164
7 500
8 1630
9 5472
10 19257
11 70132
12 265845
13 1042187
14 4233556
15 17747898
16 76808746
17 342105748
18 1567582938
19 7371055703
20 35543320641
21 175391546006
22 884988267329
23 4558168670317
24 23945579145172
25 128119583103268
26 697657759802893
27 3861749505389798

[1,1,3,7,20,54,164,500,1630,5472,19257,70132,
 265845,1042187,4233556,17747898,76808746,
 342105748,1567582938,7371055703,35543320641,
 175391546006,884988267329,4558168670317,
 23945579145172,128119583103268,697657759802893,
 3861749505389798]

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Last modified April 25 10:39 EDT 2024. Contains 371967 sequences. (Running on oeis4.)