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A112958 as a simple table

na(n)
11
21
31
41
54
619
7379
8144019
920741616379
10430214650034342688004
11185084645104171955001009752069374428191659

[1,1,1,1,4,19,379,144019,20741616379,
 430214650034342688004,
 185084645104171955001009752069374428191659]