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A325228 as a simple table

na(n)
10
20
30
40
51
63
76
89
913
1016
1120
1224
1328
1432
1538
1642
1748
1854
1960
2066
2174
2280
2388
2496
25104
26112
27122
28130
29140
30150
31160
32170
33182
34192
35204
36216
37228
38240
39254
40266
41280
42294
43308
44322
45338
46352
47368
48384
49400
50416
51434
52450
53468
54486
55504
56522
57542
58560

[0,0,0,0,1,3,6,9,13,16,20,24,28,32,38,42,48,54,60,
 66,74,80,88,96,104,112,122,130,140,150,160,170,
 182,192,204,216,228,240,254,266,280,294,308,322,
 338,352,368,384,400,416,434,450,468,486,504,522,
 542,560]