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A078504 as a simple table

na(n)
13
24
335
40
5924
60
76435
80
98568
100
1130421755
120
131961256
141
152629575
160
1762359143990
180
19513791607420
200
2158905
220
2336052387482172425
240
254280561376
260
2741648951840265
280
29164307576757973059488
300
31916312070471295267
320
3325827165

[3,4,35,0,924,0,6435,0,8568,0,30421755,0,1961256,
 1,2629575,0,62359143990,0,513791607420,0,58905,0,
 36052387482172425,0,4280561376,0,41648951840265,0,
 164307576757973059488,0,916312070471295267,0,
 25827165]