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A061651 as a simple table

n a(n)
0 0
1 2
2 4
3 6
4 8
5 20
6 22
7 40
8 44
9 60
10 66
11 80
12 88
13 200
14 202
15 204
16 220
17 222
18 240
19 244
20 248
21 284
22 400
23 404
24 408
25 420
26 440
27 444
28 480
29 488
30 600
31 606
32 648
33 660
34 666
35 684
36 800
37 808
38 840
39 880
40 888
41 2000
42 2002
43 2004
44 2008
45 2020
46 2022
47 2040
48 2044
49 2080
50 2088
51 2200
52 2202

[0,2,4,6,8,20,22,40,44,60,66,80,88,200,202,204,
 220,222,240,244,248,284,400,404,408,420,440,444,
 480,488,600,606,648,660,666,684,800,808,840,880,
 888,2000,2002,2004,2008,2020,2022,2040,2044,2080,
 2088,2200,2202]

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Last modified April 19 04:35 EDT 2024. Contains 371782 sequences. (Running on oeis4.)