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A115293 as a simple table

na(n)
01
18
231
380
4160
5272
6416
7592
8800
91040
101312
111616
121952
132320
142720
153152
163616
174112
184640
195200
205792
216416
227072
237760
248480
259232
2610016
2710832
2811680
2912560
3013472
3114416
3215392
3316400
3417440
3518512
3619616
3720752
3821920
3923120
4024352

[1,8,31,80,160,272,416,592,800,1040,1312,1616,
 1952,2320,2720,3152,3616,4112,4640,5200,5792,6416,
 7072,7760,8480,9232,10016,10832,11680,12560,13472,
 14416,15392,16400,17440,18512,19616,20752,21920,
 23120,24352]