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A271690 as a simple table

n a(n)
0 1
1 8
2 44
3 204
4 852
5 3488
6 14064
7 57188
8 228044
9 908996
10 3633896
11 14522920
12 58046984
13 232143556
14 928391308
15 3713183932 

[1,8,44,204,852,3488,14064,57188,228044,908996,
 3633896,14522920,58046984,232143556,928391308,
 3713183932]

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Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)