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A254469 as a simple table

na(n)
11
214
396
4450
51650
65082
713728
833462
975075
10157300
11311168
12586092
131058148
141841100
153100800
165073684
178090181
1812603954
1919228000
2028778750
2142329430
2261274070
2387403680
24122996250
25170922375
26234768456
27318979584
28429024376
29571584200
30754769400

[1,14,96,450,1650,5082,13728,33462,75075,157300,
 311168,586092,1058148,1841100,3100800,5073684,
 8090181,12603954,19228000,28778750,42329430,
 61274070,87403680,122996250,170922375,234768456,
 318979584,429024376,571584200,754769400]