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A051164 as a simple table

n a(n)
0 1
1 2
2 4
3 9
4 21
5 48
6 108
7 243
8 549
9 1243
10 2819
11 6412
12 14640
13 33549
14 77121
15 177747
16 410565
17 949992
18 2200978
19 5103623
20 11839783
21 27471189
22 63734823
23 147831594
24 342767586
25 794413545
26 1840338975
27 4261443374
28 9863627962
29 22822212734
30 52789053456
31 122073285984

[1,2,4,9,21,48,108,243,549,1243,2819,6412,14640,
 33549,77121,177747,410565,949992,2200978,5103623,
 11839783,27471189,63734823,147831594,342767586,
 794413545,1840338975,4261443374,9863627962,
 22822212734,52789053456,122073285984]

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Last modified September 26 22:53 EDT 2020. Contains 337377 sequences. (Running on oeis4.)