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A031749 as a simple table

na(n)
15043
220168
345375
480664
5126035
6181488
7247023
8322640
9408339
10504120
11609983
12725928
13851955
14988064
151134255
161290528
171456883
181633320
191819839
202016440
212223123
222439888
232666735
242903664
253150675
263407768
273674943
283952200
294239539

[5043,20168,45375,80664,126035,181488,247023,
 322640,408339,504120,609983,725928,851955,988064,
 1134255,1290528,1456883,1633320,1819839,2016440,
 2223123,2439888,2666735,2903664,3150675,3407768,
 3674943,3952200,4239539]