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A257640 as a simple table

na(n)
01
12
21
34
46
52
611
714
84
924
1030
1110
1247
1358
1418
1588
16108
1732
18156
19188
2057
21268
22318
2394
24444
25522
26152
27716
28834
29244
301129
311308
32378
331744
342010
35576
362652
373038
38870
393968
404524
411288
425857
436650
441884
458540
469660
472730
4812312
4913878
503906
5117572

[1,2,1,4,6,2,11,14,4,24,30,10,47,58,18,88,108,32,
 156,188,57,268,318,94,444,522,152,716,834,244,
 1129,1308,378,1744,2010,576,2652,3038,870,3968,
 4524,1288,5857,6650,1884,8540,9660,2730,12312,
 13878,3906,17572]