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A250651 as a simple table

na(n)
1120
22870
328238
4163043
5677505
62225195
76290716
815474251
934620063
1071045837
11136895633
12249167782
13432945014
14721867127
151163471851
161819556318
172767225673
184114863787
195983678292
208546815362
2111983543443
2216566644515

[120,2870,28238,163043,677505,2225195,6290716,
 15474251,34620063,71045837,136895633,249167782,
 432945014,721867127,1163471851,1819556318,
 2767225673,4114863787,5983678292,8546815362,
 11983543443,16566644515]