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A321381 as a simple table

na(n)
01
13
26
311
418
533
659
796
8150
9230
10357
11552
12825
131203
141749
152541
163666
175208
187302
1910212
2014250
2119738
2227093
2336936
2450203
2568034
2691665
27122763
28163731
29217740
30288621
31380922
32500652
33655987
34857226
351116798
361450138
371877232
382423892
393122094
404010883
415139132

[1,3,6,11,18,33,59,96,150,230,357,552,825,1203,
 1749,2541,3666,5208,7302,10212,14250,19738,27093,
 36936,50203,68034,91665,122763,163731,217740,
 288621,380922,500652,655987,857226,1116798,
 1450138,1877232,2423892,3122094,4010883,5139132]