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A081004 as a simple table

n a(n)
0 2
1 9
2 56
3 378
4 2585
5 17712
6 121394
7 832041
8 5702888
9 39088170
10 267914297
11 1836311904
12 12586269026
13 86267571273
14 591286729880
15 4052739537882
16 27777890035289
17 190392490709136
18 1304969544928658
19 8944394323791465
20 61305790721611592
21 420196140727489674

[2,9,56,378,2585,17712,121394,832041,5702888,
 39088170,267914297,1836311904,12586269026,
 86267571273,591286729880,4052739537882,
 27777890035289,190392490709136,1304969544928658,
 8944394323791465,61305790721611592,
 420196140727489674]

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)