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A001333 as a simple table

n a(n)
0 1
1 1
2 3
3 7
4 17
5 41
6 99
7 239
8 577
9 1393
10 3363
11 8119
12 19601
13 47321
14 114243
15 275807
16 665857
17 1607521
18 3880899
19 9369319
20 22619537
21 54608393
22 131836323
23 318281039
24 768398401
25 1855077841
26 4478554083
27 10812186007
28 26102926097
29 63018038201
30 152139002499

[1,1,3,7,17,41,99,239,577,1393,3363,8119,19601,
 47321,114243,275807,665857,1607521,3880899,
 9369319,22619537,54608393,131836323,318281039,
 768398401,1855077841,4478554083,10812186007,
 26102926097,63018038201,152139002499]

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Last modified December 11 17:01 EST 2018. Contains 318049 sequences. (Running on oeis4.)