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A027805 as a simple table

na(n)
5126
61470
79240
841580
9150150
10462462
111261260
123123120
137147140
1415315300
1531039008
1659961720
17111105540
18198470580
19343219800
20576609264
21943854450
221509157650
232362159800
243626122500
255468192730
268112154050
2711854124100
2817081719200
2924297273000

[126,1470,9240,41580,150150,462462,1261260,
 3123120,7147140,15315300,31039008,59961720,
 111105540,198470580,343219800,576609264,943854450,
 1509157650,2362159800,3626122500,5468192730,
 8112154050,11854124100,17081719200,24297273000]