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A153773 as a simple table

n a(n)
1 1
2 2
3 6
4 17
5 51
6 152
7 456
8 1367
9 4101
10 12302
11 36906
12 110717
13 332151
14 996452
15 2989356
16 8968067
17 26904201
18 80712602
19 242137806
20 726413417
21 2179240251
22 6537720752
23 19613162256
24 58839486767
25 176518460301
26 529555380902
27 1588666142706
28 4765998428117
29 14297995284351

[1,2,6,17,51,152,456,1367,4101,12302,36906,110717,
 332151,996452,2989356,8968067,26904201,80712602,
 242137806,726413417,2179240251,6537720752,
 19613162256,58839486767,176518460301,529555380902,
 1588666142706,4765998428117,14297995284351]

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Last modified August 20 03:48 EDT 2019. Contains 326139 sequences. (Running on oeis4.)