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A068491 as a simple table

na(n)
01
11
22
33
46
58
613
717
825
931
1042
1152
1268
1381
14101
15119
16145
17168
18200
19229
20268
21303
22349
23392
24447
25497
26560
27619
28692
29760
30843
31921
321015
331103
341208
351308
361426
371537
381667
391791
401935
412072
422230
432381
442554
452719
462907
473088
483293
493489
503710
513923
524162

[1,1,2,3,6,8,13,17,25,31,42,52,68,81,101,119,145,
 168,200,229,268,303,349,392,447,497,560,619,692,
 760,843,921,1015,1103,1208,1308,1426,1537,1667,
 1791,1935,2072,2230,2381,2554,2719,2907,3088,3293,
 3489,3710,3923,4162]