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A120958 as a simple table

na(n)
01
11
22
312
4164
53780
6128220
75962180
8363377640
928109659104
102692076369460
11312824482316588
1243373419550214360
137074801917270302072
141341285553197404432856
15292488135377674745120280

[1,1,2,12,164,3780,128220,5962180,363377640,
 28109659104,2692076369460,312824482316588,
 43373419550214360,7074801917270302072,
 1341285553197404432856,292488135377674745120280]