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A048088 as a simple table

na(n)
10
20
30
40
51
63
712
830
960
10121
11217
12385
13700
141260
152521
164960
179460
1820020
1938500
2071071
21148161
22276549
23503685
241071525
252006508
263681588
278013256
2814981556
2927412041
3060042147
31111406614
32202871284
33447617884
34828004144

[0,0,0,0,1,3,12,30,60,121,217,385,700,1260,2521,
 4960,9460,20020,38500,71071,148161,276549,503685,
 1071525,2006508,3681588,8013256,14981556,27412041,
 60042147,111406614,202871284,447617884,828004144]