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A242521 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
110
120
132
144
156
169
1742
18231
191052
203818
2110086
2227892
2390076
24310301
25993680
264663558
2722038882
28162588454
291246422151
308655752023
3158951670318
32347675502245

[0,0,0,0,0,0,0,0,0,0,0,0,2,4,6,9,42,231,1052,3818,
 10086,27892,90076,310301,993680,4663558,22038882,
 162588454,1246422151,8655752023,58951670318,
 347675502245]