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A276958 as a simple table

na(n)
11
23
34
42
55
67
79
810
911
1013
1115
126
1316
1417
1518
168
1719
1812
1920
2021
2122
2214
2323
2425
2527
2628
2729
2831
2933
3034
3135
3237
3339
3440
3541
3642
3743
3844
3945
4046
4147
4249
4351
4452
4553
4655
4757
4824
4958
5059
5161
5226
5363
5464
5565
5666
5767
5868
5969
6030
6170
6271
6373
6432
6575
6636
6776
6877
6979
7038
7181
7248
7382
7483
7585
7650
7787
7888
7989
8090
8191
8292
8393
8454

[1,3,4,2,5,7,9,10,11,13,15,6,16,17,18,8,19,12,20,
 21,22,14,23,25,27,28,29,31,33,34,35,37,39,40,41,
 42,43,44,45,46,47,49,51,52,53,55,57,24,58,59,61,
 26,63,64,65,66,67,68,69,30,70,71,73,32,75,36,76,
 77,79,38,81,48,82,83,85,50,87,88,89,90,91,92,93,
 54]