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A276887 as a simple table

na(n)
11
22
33
46
57
68
711
812
915
1016
1117
1220
1321
1422
1525
1626
1729
1830
1931
2034
2135
2238
2339
2440
2543
2644
2745
2848
2949
3052
3153
3254
3357
3458
3559
3662
3763
3866
3967
4068
4171
4272
4375
4476
4577
4680
4781
4882
4985
5086
5189
5290
5391
5494
5595
5698
5799
58100
59103
60104
61105
62108
63109
64112

[1,2,3,6,7,8,11,12,15,16,17,20,21,22,25,26,29,30,
 31,34,35,38,39,40,43,44,45,48,49,52,53,54,57,58,
 59,62,63,66,67,68,71,72,75,76,77,80,81,82,85,86,
 89,90,91,94,95,98,99,100,103,104,105,108,109,112]