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A124478 as a simple table

na(n)
1-2
2-2
3-1
4-1
50
60
71
80
91
104
112
125
135
143
154
166
178
186
198
208
216
228
237
249
2513
2612
2710
2810
297
307
3117
3216
3317
3414
3519
3617
3718
3819
3918
4019
4120
4217
4322
4419
4518
4616
4723
4829
4928
5025
5124
5225
5321
5426
5527
5628
5728
5825
5926
6025
6122
6227
6335
6434
6530
6629
6737
6838
6942
7038
7137
7237
7340
7440
7540
7639
7739
7841
7940
8042

[-2,-2,-1,-1,0,0,1,0,1,4,2,5,5,3,4,6,8,6,8,8,6,8,
 7,9,13,12,10,10,7,7,17,16,17,14,19,17,18,19,18,19,
 20,17,22,19,18,16,23,29,28,25,24,25,21,26,27,28,
 28,25,26,25,22,27,35,34,30,29,37,38,42,38,37,37,
 40,40,40,39,39,41,40,42]