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A014089 as a simple table

na(n)
12
23
34
45
56
67
78
89
911
1012
1113
1214
1315
1416
1517
1618
1719
1820
1921
2022
2123
2224
2326
2427
2528
2629
2730
2831
2932
3033
3135
3236
3337
3438
3539
3640
3741
3842
3943
4044
4145
4246
4347
4448
4549
4650
4751
4852
4953
5054
5155
5256
5357
5459
5560
5661
5762

[2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,19,20,21,
 22,23,24,26,27,28,29,30,31,32,33,35,36,37,38,39,
 40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,
 56,57,59,60,61,62]