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A102927 as a simple table

na(n)
12
26
330
4870
59570
666990
7870870
832222190
9547777230
1043274401170
11995311226910
124109640055911390
13793160530790898270
142056665256340799214110
15207723190890420720625110

[2,6,30,870,9570,66990,870870,32222190,547777230,
 43274401170,995311226910,4109640055911390,
 793160530790898270,2056665256340799214110,
 207723190890420720625110]