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A390645 as a simple table

na(n)
01
11
22
32
43
54
64
74
87
98
108
116
1211
1315
1416
1516
1611
1716
1826
1931
2032
2132
2223
2322
2442
2557
2663
2764
2864
2945
3037
3164
3299
33120
34127
35128
36128
3794
3867
3993
40163
41219
42247
43255
44256
45256
46187

[1,1,2,2,3,4,4,4,7,8,8,6,11,15,16,16,11,16,26,31,
 32,32,23,22,42,57,63,64,64,45,37,64,99,120,127,
 128,128,94,67,93,163,219,247,255,256,256,187]