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A343031 as a simple table

na(n)
01
12
23
33
47
59
64
711
812
920
105
1115
1224
1324
1439
156
1619
1733
1834
1942
2067
217
2223
2342
2458
2554
2671
27107
288
2927
3054
3174
3275
3381
34110
35160
369
3731
3866
3990
40115
41105
42122
43164
44229
4510
4635
4775
48110
49140
50141
51143
52174
53232
54315
5511
5639
5784
58130
59165
60201
61183
62198
63244
64319
65421

[1,2,3,3,7,9,4,11,12,20,5,15,24,24,39,6,19,33,34,
 42,67,7,23,42,58,54,71,107,8,27,54,74,75,81,110,
 160,9,31,66,90,115,105,122,164,229,10,35,75,110,
 140,141,143,174,232,315,11,39,84,130,165,201,183,
 198,244,319,421]