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A067998 as a simple table

na(n)
00
1-1
20
33
48
515
624
735
848
963
1080
1199
12120
13143
14168
15195
16224
17255
18288
19323
20360
21399
22440
23483
24528
25575
26624
27675
28728
29783
30840
31899
32960
331023
341088
351155
361224
371295
381368
391443
401520
411599
421680
431763
441848
451935
462024
472115
482208
492303
502400
512499
522600
532703
542808
552915
563024
573135
583248
593363

[0,-1,0,3,8,15,24,35,48,63,80,99,120,143,168,195,
 224,255,288,323,360,399,440,483,528,575,624,675,
 728,783,840,899,960,1023,1088,1155,1224,1295,1368,
 1443,1520,1599,1680,1763,1848,1935,2024,2115,2208,
 2303,2400,2499,2600,2703,2808,2915,3024,3135,3248,
 3363]