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A139064 as a simple table

na(n)
15702401
2186810624001
32988969984001
42215887149047283712000001
51476163995198020704238093048217600000001
619811874077955690819705574245769915192271839538955347505831613562880000000000001

[5702401,186810624001,2988969984001,
 2215887149047283712000001,
 1476163995198020704238093048217600000001,
 19811874077955690819705574245769915192271839538955\
 347505831613562880000000000001]