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A183218 as a simple table

na(n)
12
23
34
45
57
68
79
810
911
1012
1113
1214
1316
1417
1518
1619
1720
1821
1922
2023
2124
2225
2326
2427
2529
2630
2731
2832
2933
3034
3135
3236
3337
3438
3539
3640
3741
3842
3943
4044
4146
4247
4348
4449
4550
4651
4752
4853
4954
5055
5156
5257
5358
5459
5560
5661
5762
5863
5964
6065
6167
6268
6369
6470
6571
6672
6773
6874
6975
7076
7177
7278
7379
7480
7581
7682
7783
7884
7985
8086
8187
8288
8389
8490
8592
8693
8794
8895
8996
9097
9198
9299
93100
94101
95102
96103
97104
98105
99106
100107

[2,3,4,5,7,8,9,10,11,12,13,14,16,17,18,19,20,21,
 22,23,24,25,26,27,29,30,31,32,33,34,35,36,37,38,
 39,40,41,42,43,44,46,47,48,49,50,51,52,53,54,55,
 56,57,58,59,60,61,62,63,64,65,67,68,69,70,71,72,
 73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,
 89,90,92,93,94,95,96,97,98,99,100,101,102,103,104,
 105,106,107]