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A207872 as a simple table

na(n)
11
22
34
44
58
68
78
816
916
1016
1116
1216
1332
1432
1532
1632
1732
1832
1932
2032
2164
2264
2364
2464
2564
2664
2764
2864
2964
3064
3164
3264
3364
34128
35128
36128
37128
38128
39128
40128
41128
42128
43128
44128
45128
46128
47128
48128
49128
50128
51128
52128
53128
54128
55256
56256
57256
58256
59256

[1,2,4,4,8,8,8,16,16,16,16,16,32,32,32,32,32,32,
 32,32,64,64,64,64,64,64,64,64,64,64,64,64,64,128,
 128,128,128,128,128,128,128,128,128,128,128,128,
 128,128,128,128,128,128,128,128,256,256,256,256,
 256]