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A178531 as a simple table

na(n)
12
23
34
45
56
67
711
857
961
1070
11127
12223
13237
14240
15310
16467
17651
181935
192333
203457
214456
226048
2311289
2412150
2524693
2628437
2731123
2832909
2952041
3058225
3168297
32201801

[2,3,4,5,6,7,11,57,61,70,127,223,237,240,310,467,
 651,1935,2333,3457,4456,6048,11289,12150,24693,
 28437,31123,32909,52041,58225,68297,201801]