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A001672 as a simple table

n a(n)
0 1
1 3
2 9
3 31
4 97
5 306
6 961
7 3020
8 9488
9 29809
10 93648
11 294204
12 924269
13 2903677
14 9122171
15 28658145
16 90032220
17 282844563
18 888582403
19 2791563949
20 8769956796
21 27551631842
22 86556004191
23 271923706893
24 854273519913
25 2683779414317
26 8431341691876
27 26487841119103

[1,3,9,31,97,306,961,3020,9488,29809,93648,294204,
 924269,2903677,9122171,28658145,90032220,
 282844563,888582403,2791563949,8769956796,
 27551631842,86556004191,271923706893,854273519913,
 2683779414317,8431341691876,26487841119103]

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Last modified May 30 17:43 EDT 2024. Contains 372971 sequences. (Running on oeis4.)