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A182027 as a simple table

na(n)
01
12
22
32
44
56
612
720
840
970
10140
11252
12504
13924
141848
153432
166864
1712870
1825740
1948620
2097240
21184756
22369512
23705432
241410864
252704156
265408312
2710400600
2820801200
2940116600
3080233200
31155117520
32310235040
33601080390
341202160780
352333606220
364667212440
379075135300
3818150270600
3935345263800

[1,2,2,2,4,6,12,20,40,70,140,252,504,924,1848,
 3432,6864,12870,25740,48620,97240,184756,369512,
 705432,1410864,2704156,5408312,10400600,20801200,
 40116600,80233200,155117520,310235040,601080390,
 1202160780,2333606220,4667212440,9075135300,
 18150270600,35345263800]