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A253652 as a simple table

na(n)
10
26
336
4120
5210
6300
7630
81176
92016
103240
113570
124950
137140
147260
1510296
1614196
1719110
1823436
1925200
2032640
2139060
2241616
2352326
2461776
2564980
2679800
2797020
28116886
29139656
30145530
31165600
32195000
33228150
34242556
35265356
36304590
37306936
38349866
39353220
40404550
41426426
42461280

[0,6,36,120,210,300,630,1176,2016,3240,3570,4950,
 7140,7260,10296,14196,19110,23436,25200,32640,
 39060,41616,52326,61776,64980,79800,97020,116886,
 139656,145530,165600,195000,228150,242556,265356,
 304590,306936,349866,353220,404550,426426,461280]