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A309250 as a simple table

na(n)
11
22
33
44
55
65
76
86
97
107
118
128
139
149
1510
1610
1711
1811
1912
2012
2113
2213
2313
2413
2514
2614
2714
2814
2915
3015
3115
3215
3316
3416
3516
3616
3717
3817
3917
4017
4118
4218
4318
4418
4519
4619
4719
4819
4920
5020
5120
5220
5321
5421
5521
5621
5722
5822
5922
6022
6123
6223
6323
6423
6524
6624
6724
6824
6925
7025
7125
7225

[1,2,3,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,
 13,13,13,14,14,14,14,15,15,15,15,16,16,16,16,17,
 17,17,17,18,18,18,18,19,19,19,19,20,20,20,20,21,
 21,21,21,22,22,22,22,23,23,23,23,24,24,24,24,25,
 25,25,25]