login

A153257 as a simple table

na(n)
0-1
1-3
2-1
311
439
589
6167
7279
8431
9629
10879
111187
121559
132001
142519
153119
163807
174589
185471
196459
207559
218777
2210119
2311591
2413199
2514949
2616847
2718899
2821111
2923489
3026039
3128767
3231679
3334781
3438079
3541579
3645287
3749209
3853351
3957719

[-1,-3,-1,11,39,89,167,279,431,629,879,1187,1559,
 2001,2519,3119,3807,4589,5471,6459,7559,8777,
 10119,11591,13199,14949,16847,18899,21111,23489,
 26039,28767,31679,34781,38079,41579,45287,49209,
 53351,57719]