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A091983 as a simple table

na(n)
01
120
2180
3560
41460
52520
65040
76880
811700
915140
1022680
1126640
1240880
1343960
1461920
1570560
1693620
1798280
18136260
19137200
20183960
21192640
22239760
23243360
24327600
25315020
26395640
27408800
28502240
29487800
30635040
31595840
32748980
33745920

[1,20,180,560,1460,2520,5040,6880,11700,15140,
 22680,26640,40880,43960,61920,70560,93620,98280,
 136260,137200,183960,192640,239760,243360,327600,
 315020,395640,408800,502240,487800,635040,595840,
 748980,745920]