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A048395 as a simple table

na(n)
00
15
226
375
4164
5305
6510
7791
81160
91629
102210
112915
123756
134745
145894
157215
168720
1710421
1812330
1914459
2016820
2119425
2222286
2325415
2428824
2532525
2636530
2740851
2845500
2950489
3055830
3161535
3267616
3374085
3480954
3588235
3695940
37104081

[0,5,26,75,164,305,510,791,1160,1629,2210,2915,
 3756,4745,5894,7215,8720,10421,12330,14459,16820,
 19425,22286,25415,28824,32525,36530,40851,45500,
 50489,55830,61535,67616,74085,80954,88235,95940,
 104081]