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A223770 as a simple table

na(n)
12
24
34
47
512
67
711
828
928
1011
1116
1256
1371
1456
1516
1622
17101
18155
19155
20101
2122
2229
23169
24317
25361
26317
27169
2829
2937
30267
31607
32782
33782
34607
35267
3637
3746
38403
391097
401601
411748
421601
431097
44403
4546
4656
47586
481887
493141
503699
513699
523141
531887
54586
5556
5667
57826

[2,4,4,7,12,7,11,28,28,11,16,56,71,56,16,22,101,
 155,155,101,22,29,169,317,361,317,169,29,37,267,
 607,782,782,607,267,37,46,403,1097,1601,1748,1601,
 1097,403,46,56,586,1887,3141,3699,3699,3141,1887,
 586,56,67,826]