login

A273480 as a simple table

na(n)
01
15
230
379
4160
5281
6450
7675
8964
91325
101766
112295
122920
133649
144490
155451
166540
177765
189134
1910655
2012336
2114185
2216210
2318419
2420820
2523421
2626230
2729255
2832504
2935985
3039706
3143675
3247900
3352389
3457150
3562191
3667520
3773145
3879074
3985315
4091876
4198765

[1,5,30,79,160,281,450,675,964,1325,1766,2295,
 2920,3649,4490,5451,6540,7765,9134,10655,12336,
 14185,16210,18419,20820,23421,26230,29255,32504,
 35985,39706,43675,47900,52389,57150,62191,67520,
 73145,79074,85315,91876,98765]