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A303554 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1213
1314
1415
1516
1617
1719
1821
1922
2023
2125
2226
2327
2429
2530
2631
2732
2833
2934
3035
3137
3238
3339
3441
3542
3643
3746
3847
3949
4051
4153
4255
4357
4458
4559
4661
4762
4864
4965
5066
5167
5269
5370
5471
5573
5674
5777
5878
5979
6081
6182
6283
6385
6486
6587
6689
6791
6893
6994
7095
7197
72101
73102
74103
75105
76106
77107
78109
79110

[1,2,3,4,5,6,7,8,9,10,11,13,14,15,16,17,19,21,22,
 23,25,26,27,29,30,31,32,33,34,35,37,38,39,41,42,
 43,46,47,49,51,53,55,57,58,59,61,62,64,65,66,67,
 69,70,71,73,74,77,78,79,81,82,83,85,86,87,89,91,
 93,94,95,97,101,102,103,105,106,107,109,110]