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A163962 as a simple table

na(n)
01
115
2210
32940
441160
5576240
68067255
7112940100
81581140925
922135686300
10309895595100
114338482148000
1260737963515320
13850320477564285
1411904332524792890
15166658497119549435
162333188744879254990

[1,15,210,2940,41160,576240,8067255,112940100,
 1581140925,22135686300,309895595100,4338482148000,
 60737963515320,850320477564285,11904332524792890,
 166658497119549435,2333188744879254990]