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A018025 as a simple table

n a(n)
0 1
1 3
2 7
3 17
4 44
5 112
6 289
7 743
8 1911
9 4913
10 12633
11 32482
12 83521
13 214756
14 552198
15 1419857
16 3650852
17 9387369
18 24137569
19 62064487
20 159585272
21 410338673
22 1055096276
23 2712949630
24 6975757441
25 17936636689
26 46120143717
27 118587876497
28 304922823712
29 784042443182

[1,3,7,17,44,112,289,743,1911,4913,12633,32482,
 83521,214756,552198,1419857,3650852,9387369,
 24137569,62064487,159585272,410338673,1055096276,
 2712949630,6975757441,17936636689,46120143717,
 118587876497,304922823712,784042443182]

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Last modified April 23 11:35 EDT 2024. Contains 371912 sequences. (Running on oeis4.)