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A137047 as a simple table

n a(n)
1 1
2 4
3 8
4 41
5 81
6 816
7 6441
8 6454
9 11881
10 64466
11 64546
12 641441
13 644581
14 684581
15 6454581
16 8114466
17 11881141
18 64541141
19 64661881
20 66448884
21 68444641
22 81556184
23 644658684
24 644861881
25 644868641
26 646618641
27 664414454
28 664564184
29 681585546
30 811488858
31 815141488
32 6414448884
33 6445668816
34 6448618546
35 6644141541
36 64465581141
37 64548885884

[1,4,8,41,81,816,6441,6454,11881,64466,64546,
 641441,644581,684581,6454581,8114466,11881141,
 64541141,64661881,66448884,68444641,81556184,
 644658684,644861881,644868641,646618641,664414454,
 664564184,681585546,811488858,815141488,
 6414448884,6445668816,6448618546,6644141541,
 64465581141,64548885884]

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Last modified October 22 15:40 EDT 2021. Contains 348172 sequences. (Running on oeis4.)