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A260755 as a simple table

na(n)
11
21
31
42
54
6252
72304
8343712160
917361257184
10817232021393069622912
11337615438409845853800240
121002314950534089781700930298791626826040504
134687493998578314511363173974007271386258869456

[1,1,1,2,4,252,2304,343712160,17361257184,
 817232021393069622912,337615438409845853800240,
 1002314950534089781700930298791626826040504,
 4687493998578314511363173974007271386258869456]