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A027778 as a simple table

na(n)
310
475
5315
6980
72520
85670
911550
1021780
1138610
1265065
13105105
14163800
15247520
16364140
17523260
18736440
191017450
201382535
211850695
222443980
233187800
244111250
255247450
266633900
278312850
2810331685
2912743325
3015606640
3118986880
3222956120
3327593720
3432986800
3539230730

[10,75,315,980,2520,5670,11550,21780,38610,65065,
 105105,163800,247520,364140,523260,736440,1017450,
 1382535,1850695,2443980,3187800,4111250,5247450,
 6633900,8312850,10331685,12743325,15606640,
 18986880,22956120,27593720,32986800,39230730]