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A064620 as a simple table

na(n)
11
22
33
45
54
67
711
86
913
1017
1110
1219
139
148
1523
1629
1714
1815
1931
2022
2137
2241
2312
2443
2525
2626

[1,2,3,5,4,7,11,6,13,17,10,19,9,8,23,29,14,15,31,
 22,37,41,12,43,25,26]