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A172030 as a simple table

na(n)
00
11
25
331
431
5619
6619
75779
85779
969341
1069341
113051179
123051179
1352884569
1452884569
15634649863
16634649863
1743152570067
1843152570067
191093376176159
201093376176159
212623076354557
222623076354557
23241599308325943
24241599308325943
251604223576455477

[0,1,5,31,31,619,619,5779,5779,69341,69341,
 3051179,3051179,52884569,52884569,634649863,
 634649863,43152570067,43152570067,1093376176159,
 1093376176159,2623076354557,2623076354557,
 241599308325943,241599308325943,1604223576455477]