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A129974 as a simple table

na(n)
10
2627
31128
42811
56188
69027
718740
838375
954908
10111503
11225936
12322295
13652152
141319115
151880736
163803283
177690628
1810963995
1922169420
2044826527
2163905108
22129215111
23261270408
24372468527
25753123120
261522797795
272170907928

[0,627,1128,2811,6188,9027,18740,38375,54908,
 111503,225936,322295,652152,1319115,1880736,
 3803283,7690628,10963995,22169420,44826527,
 63905108,129215111,261270408,372468527,753123120,
 1522797795,2170907928]