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A157176 as a simple table

na(n)
01
12
22
33
45
58
68
716
816
924
1040
1164
1264
13128
14128
15192
16320
17512
18512
191024
201024
211536
222560
234096
244096
258192
268192
2712288
2820480
2932768
3032768
3165536
3265536
3398304
34163840
35262144
36262144
37524288
38524288
39786432
401310720
412097152
422097152
434194304
444194304

[1,2,2,3,5,8,8,16,16,24,40,64,64,128,128,192,320,
 512,512,1024,1024,1536,2560,4096,4096,8192,8192,
 12288,20480,32768,32768,65536,65536,98304,163840,
 262144,262144,524288,524288,786432,1310720,
 2097152,2097152,4194304,4194304]