A338979 - OEIS

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A338979 as a simple table

n	a(n)
0	1
1	2
2	13
3	199
4	5073
5	181776
6	8413021
7	478070020
8	32238960193
9	2517734880838
10	223558608409101
11	22248413487603887
12	2453271411779452369
13	296925818848604834448
14	39138393489232585787037

[1,2,13,199,5073,181776,8413021,478070020, 32238960193,2517734880838,223558608409101, 22248413487603887,2453271411779452369, 296925818848604834448,39138393489232585787037]