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A051800 as a simple table

na(n)
11
22
33
44
55
611
718
823
926
1030
1180
12120
13148
14220
15395
16776
17884
18977
193535
203927

[1,2,3,4,5,11,18,23,26,30,80,120,148,220,395,776,
 884,977,3535,3927]