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A130620 as a simple table

n a(n)
0 3
1 9
2 31
3 106
4 365
5 1263
6 4388
7 15336
8 53871
9 190059
10 673222
11 2393291
12 8535397
13 30526712
14 109449848
15 393272258
16 1415768769
17 5105086517
18 18434398665
19 66647658995
20 241210652738
21 873773659486
22 3167642169823
23 11491042716338
24 41708741708554
25 151461799255253

[3,9,31,106,365,1263,4388,15336,53871,190059,
 673222,2393291,8535397,30526712,109449848,
 393272258,1415768769,5105086517,18434398665,
 66647658995,241210652738,873773659486,
 3167642169823,11491042716338,41708741708554,
 151461799255253]

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Last modified April 25 16:45 EDT 2024. Contains 371989 sequences. (Running on oeis4.)