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A045894 as a simple table

n a(n)
0 1
1 12
2 94
3 608
4 3525
5 19044
6 97954
7 486000
8 2345930
9 11081880
10 51447036
11 235454848
12 1064832173
13 4767347796
14 21160397050
15 93223960784
16 408037319262
17 1775744775592
18 7688699122724
19 33140226601920
20 142262721338146

[1,12,94,608,3525,19044,97954,486000,2345930,
 11081880,51447036,235454848,1064832173,4767347796,
 21160397050,93223960784,408037319262,
 1775744775592,7688699122724,33140226601920,
 142262721338146]

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Last modified May 14 20:39 EDT 2024. Contains 372533 sequences. (Running on oeis4.)