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A116533 as a simple table

na(n)
11
22
34
43
56
65
710
89
98
107
1114
1213
1326
1425
1524
1623
1746
1845
1944
2043
2186
2285
2384
2483
25166
26165
27164
28163
29326
30325
31324
32323
33322
34321
35320
36319
37318
38317
39634
40633
41632
42631
431262
441261
451260
461259
472518
482517
492516
502515
512514
522513
532512
542511
552510
562509
572508

[1,2,4,3,6,5,10,9,8,7,14,13,26,25,24,23,46,45,44,
 43,86,85,84,83,166,165,164,163,326,325,324,323,
 322,321,320,319,318,317,634,633,632,631,1262,1261,
 1260,1259,2518,2517,2516,2515,2514,2513,2512,2511,
 2510,2509,2508]