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A265252 as a simple table

na(n)
10
20
30
41
53
67
714
825
942
1068
11105
12158
13233
14337
15476
16669
17922
181262
191704
202288
213036
224015
235251
246846
258851
2611408
2714590
2818614
2923591
3029824
3137492
3247018
3358670
3473050
3590543
36111995
37137982
38169652
39207848
40254156
41309784
42376892
43457200
44553640
45668643
46806174
47969613
481164309
491394960
501668709

[0,0,0,1,3,7,14,25,42,68,105,158,233,337,476,669,
 922,1262,1704,2288,3036,4015,5251,6846,8851,11408,
 14590,18614,23591,29824,37492,47018,58670,73050,
 90543,111995,137982,169652,207848,254156,309784,
 376892,457200,553640,668643,806174,969613,1164309,
 1394960,1668709]