A251978 - OEIS

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A251978 as a simple table

n	a(n)
1	41682
2	516108
3	4379034
4	26230040
5	196459816
6	1645790820
7	13277304274
8	103969785600
9	818715734694
10	6500654740228
11	51596730375356
12	408712971161574
13	3237078260833534
14	25650449408415052
15	203271994945959992

[41682,516108,4379034,26230040,196459816, 1645790820,13277304274,103969785600,818715734694, 6500654740228,51596730375356,408712971161574, 3237078260833534,25650449408415052, 203271994945959992]