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A196262 as a simple table

na(n)
12
24
35
46
57
67
79
810
911
1012
1113
1215
1315
1417
1519
1620
1720
1822
1922
2023
2123
2225
2325
2426
2528
2629
2731
2831
2932
3032
3132
3233
3334
3436
3537
3638
3738
3839
3939
4041
4141
4243
4344
4444
4546
4647
4747
4850
4952
5052
5152
5253
5354
5455
5555
5655
5755
5857
5958
6058
6159
6260
6361
6462
6563
6664
6764
6864
6964
7065
7165
7265
7367
7468
7568
7668

[2,4,5,6,7,7,9,10,11,12,13,15,15,17,19,20,20,22,
 22,23,23,25,25,26,28,29,31,31,32,32,32,33,34,36,
 37,38,38,39,39,41,41,43,44,44,46,47,47,50,52,52,
 52,53,54,55,55,55,55,57,58,58,59,60,61,62,63,64,
 64,64,64,65,65,65,67,68,68,68]