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A008778 as a simple table

na(n)
01
15
213
326
445
571
6105
7148
8201
9265
10341
11430
12533
13651
14785
15936
161105
171293
181501
191730
201981
212255
222553
232876
243225
253601
264005
274438
284901
295395
305921
316480
327073
337701
348365
359066
369805
3710583
3811401
3912260
4013161
4114105
4215093
4316126
4417205
4518331

[1,5,13,26,45,71,105,148,201,265,341,430,533,651,
 785,936,1105,1293,1501,1730,1981,2255,2553,2876,
 3225,3601,4005,4438,4901,5395,5921,6480,7073,7701,
 8365,9066,9805,10583,11401,12260,13161,14105,
 15093,16126,17205,18331]