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A381237 as a simple table

na(n)
00
11
211
311
411
511
611
711
811
911
1011
1111
12222
13111
14222
15222
16111
17222
18222
19111
20222
21444
22444
23222
24222
25111
26222
27222
28111
29222
30222
31444
32222
33444
34222
35222
36222
3737
38222
39222
40222
41444
42444
43444
44444
45222
46111
47222
48222
49111
50222
51444
52444
53222
54444

[0,1,11,11,11,11,11,11,11,11,11,11,222,111,222,
 222,111,222,222,111,222,444,444,222,222,111,222,
 222,111,222,222,444,222,444,222,222,222,37,222,
 222,222,444,444,444,444,222,111,222,222,111,222,
 444,444,222,444]