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A033757 as a simple table

na(n)
01
12
20
32
46
52
64
74
84
916
104
110
1218
1316
148
1510
1618
1720
1840
1916
206
2156
2216
2320
2452
2522
2632
2762
2852
2924
3060
3132
3264
33144
3412
3520
36144
3748
3832
3964
4048
41120
42132
4352
4432
45176
4624
4752
48242
4946
5084
51128
52112
5376
54124
5564
56136

[1,2,0,2,6,2,4,4,4,16,4,0,18,16,8,10,18,20,40,16,
 6,56,16,20,52,22,32,62,52,24,60,32,64,144,12,20,
 144,48,32,64,48,120,132,52,32,176,24,52,242,46,84,
 128,112,76,124,64,136]