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A252958 as a simple table

na(n)
11251
2385
3605
41027
51747
63315
76091
811027
921661
1041149
1176195
12151665
13291595
14549597
151095917
162131051
174059427
188119947
1915887899
2030599099
2161205869
22120548245
23233864947
24468315993
25925888219
261808629749
273620886461

[1251,385,605,1027,1747,3315,6091,11027,21661,
 41149,76195,151665,291595,549597,1095917,2131051,
 4059427,8119947,15887899,30599099,61205869,
 120548245,233864947,468315993,925888219,
 1808629749,3620886461]