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A125574 as a simple table

na(n)
131515413
269730637
3132102911
4132375259
5215483129
6284491367
7325689253
8388190689
9548369603
10620829113
11633418787
12638213603
13670216277
14793852487
15797759539
16960200149
171038197399
181050359137
191092920249
201331713301
211342954871
221349496367
231365964199

[31515413,69730637,132102911,132375259,215483129,
 284491367,325689253,388190689,548369603,620829113,
 633418787,638213603,670216277,793852487,797759539,
 960200149,1038197399,1050359137,1092920249,
 1331713301,1342954871,1349496367,1365964199]