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A264912 as a simple table

n a(n)
0 1
1 1
2 7
3 56
4 476
5 4312
6 41468
7 422128
8 4536140
9 51328018
10 610168496
11 7604171722
12 99154078394
13 1350325442746
14 19173655721912
15 283420080801700
16 4354942891383206
17 69465537443190352
18 1148784383085885884
19 19673049517219904032
20 348483690687062619926

[1,1,7,56,476,4312,41468,422128,4536140,51328018,
 610168496,7604171722,99154078394,1350325442746,
 19173655721912,283420080801700,4354942891383206,
 69465537443190352,1148784383085885884,
 19673049517219904032,348483690687062619926]

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Last modified August 3 08:53 EDT 2020. Contains 336197 sequences. (Running on oeis4.)