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A013955 as a simple table

n a(n)
1 1
2 129
3 2188
4 16513
5 78126
6 282252
7 823544
8 2113665
9 4785157
10 10078254
11 19487172
12 36130444
13 62748518
14 106237176
15 170939688
16 270549121
17 410338674
18 617285253
19 893871740
20 1290094638
21 1801914272
22 2513845188

[1,129,2188,16513,78126,282252,823544,2113665,
 4785157,10078254,19487172,36130444,62748518,
 106237176,170939688,270549121,410338674,617285253,
 893871740,1290094638,1801914272,2513845188]

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Last modified October 14 07:19 EDT 2019. Contains 327995 sequences. (Running on oeis4.)