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A325952 as a simple table

na(n)
01
15
215
336
475
5142
6251
7421
8677
91052
101589
112343
123384
134800
146701
159224
1612538
1716850
1822413
1929534
2038584
2150010
2264348
2382238
24104442
25131864
26165573
27206830
28257118
29318176
30392039
31481082
32588070
33716216
34869245
351051467
361267860
371524162
381826975

[1,5,15,36,75,142,251,421,677,1052,1589,2343,3384,
 4800,6701,9224,12538,16850,22413,29534,38584,
 50010,64348,82238,104442,131864,165573,206830,
 257118,318176,392039,481082,588070,716216,869245,
 1051467,1267860,1524162,1826975]