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A002624 as a simple table

na(n)
01
13
28
316
430
550
680
7120
8175
9245
10336
11448
12588
13756
14960
151200
161485
171815
182200
192640
203146
213718
224368
235096
245915
256825
267840
278960
2810200
2911560
3013056
3114688
3216473
3318411
3420520
3522800
3625270
3727930
3830800
3933880
4037191
4140733
4244528

[1,3,8,16,30,50,80,120,175,245,336,448,588,756,
 960,1200,1485,1815,2200,2640,3146,3718,4368,5096,
 5915,6825,7840,8960,10200,11560,13056,14688,16473,
 18411,20520,22800,25270,27930,30800,33880,37191,
 40733,44528]