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A136906 as a simple table

n a(n)
1 0
2 2
3 20
4 22
5 28
6 88
7 200
8 202
9 220
10 278
11 280
12 448
13 472
14 478
15 878
16 880
17 2000
18 2002
19 2020
20 2022
21 2200
22 2202
23 2780
24 2800
25 2878
26 4480
27 4720
28 4780
29 8780
30 8800
31 20000
32 20002
33 20020
34 20022
35 20200
36 20220
37 22000
38 22002
39 22020
40 27800
41 28000
42 28780
43 44800
44 47200
45 47202
46 47800
47 84878
48 87800
49 88000
50 88022
51 200000
52 200002
53 200020
54 200022
55 200200
56 200202

[0,2,20,22,28,88,200,202,220,278,280,448,472,478,
 878,880,2000,2002,2020,2022,2200,2202,2780,2800,
 2878,4480,4720,4780,8780,8800,20000,20002,20020,
 20022,20200,20220,22000,22002,22020,27800,28000,
 28780,44800,47200,47202,47800,84878,87800,88000,
 88022,200000,200002,200020,200022,200200,200202]

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Last modified March 28 16:00 EDT 2024. Contains 371254 sequences. (Running on oeis4.)