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A148674 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 21
5 65
6 205
7 693
8 2359
9 8239
10 29515
11 106499
12 391467
13 1455087
14 5452595
15 20672471
16 78900633
17 303359513
18 1175020613
19 4574684005
20 17916257965
21 70522908505
22 278795140965
23 1107201637121
24 4413934773601
25 17660667666925
26 70913992184321
27 285628248472061
28 1153968725090537
29 4675436105737789

[1,1,3,7,21,65,205,693,2359,8239,29515,106499,
 391467,1455087,5452595,20672471,78900633,
 303359513,1175020613,4574684005,17916257965,
 70522908505,278795140965,1107201637121,
 4413934773601,17660667666925,70913992184321,
 285628248472061,1153968725090537,4675436105737789]

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Last modified July 2 18:27 EDT 2022. Contains 355029 sequences. (Running on oeis4.)