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A223837 as a simple table

na(n)
129
2239
3926
42578
56159
613582
728369
856607
9108282
10199047
11352486
12602938
13998945
141607388
152518375
163850945
175759652
188442093
1912147444
2017186068
2123940259
2232876186
2344557101
2459657875
2578980926
26103473603
27134247090

[29,239,926,2578,6159,13582,28369,56607,108282,
 199047,352486,602938,998945,1607388,2518375,
 3850945,5759652,8442093,12147444,17186068,
 23940259,32876186,44557101,59657875,78980926,
 103473603,134247090]