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A198180 as a simple table

n a(n)
1 1
2 3
3 9
4 25
5 77
6 148
7 395
8 866
9 2346
10 5663
11 14065
12 34309
13 84252
14 208413
15 513352
16 1266410
17 3117377
18 7679699
19 18927327
20 46639092
21 114949605
22 283220762
23 697929906
24 1719783577
25 4237987789
26 10443340285
27 25734497336
28 63415169957
29 156267786924

[1,3,9,25,77,148,395,866,2346,5663,14065,34309,
 84252,208413,513352,1266410,3117377,7679699,
 18927327,46639092,114949605,283220762,697929906,
 1719783577,4237987789,10443340285,25734497336,
 63415169957,156267786924]

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Last modified June 20 12:57 EDT 2021. Contains 345164 sequences. (Running on oeis4.)