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A185826 as a simple table

na(n)
11
225
33375
41336336
51160290625
61870414552161
75026507568359375
820882706457600000000
9126834469112674289266929
101078732544346879404306640625
1112415028528548173886807771291871
12188031682201497672618081000000000000
133661926425131437024691115607984619140625

[1,25,3375,1336336,1160290625,1870414552161,
 5026507568359375,20882706457600000000,
 126834469112674289266929,
 1078732544346879404306640625,
 12415028528548173886807771291871,
 188031682201497672618081000000000000,
 3661926425131437024691115607984619140625]