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A077957 as a simple table

na(n)
01
10
22
30
44
50
68
70
816
90
1032
110
1264
130
14128
150
16256
170
18512
190
201024
210
222048
230
244096
250
268192
270
2816384
290
3032768
310
3265536
330
34131072
350
36262144
370
38524288
390
401048576
410
422097152
430
444194304
450
468388608
470
4816777216
490
5033554432
510
5267108864
530
54134217728
550
56268435456

[1,0,2,0,4,0,8,0,16,0,32,0,64,0,128,0,256,0,512,0,
 1024,0,2048,0,4096,0,8192,0,16384,0,32768,0,65536,
 0,131072,0,262144,0,524288,0,1048576,0,2097152,0,
 4194304,0,8388608,0,16777216,0,33554432,0,
 67108864,0,134217728,0,268435456]