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A263945 as a simple table

na(n)
126
2871
359930
41155895
577814386
61500376111
7101003038370
81947487061455
9131101866015146
102527836705417751
11170170121084646410
123281130096145204615
13220880686066005050306
144258904336959770197791
15286702960343553470676050
165528054548243685571553375

[26,871,59930,1155895,77814386,1500376111,
 101003038370,1947487061455,131101866015146,
 2527836705417751,170170121084646410,
 3281130096145204615,220880686066005050306,
 4258904336959770197791,286702960343553470676050,
 5528054548243685571553375]