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A003732 as a simple table

na(n)
15
2130
31660
416820
5152230
61275680
710154290
877897010
9581452680
104250594690
1130572999140
12217099260110
131525905283670
1410636695448300
1573649615037480
16507171127397480
173476871213780220
1823747634842538120

[5,130,1660,16820,152230,1275680,10154290,
 77897010,581452680,4250594690,30572999140,
 217099260110,1525905283670,10636695448300,
 73649615037480,507171127397480,3476871213780220,
 23747634842538120]