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A303261 as a simple table

na(n)
11
228
335
41936
52761
63421
73732
84043
94354
10281048
11289820
12333293
13420239
14428752
15430686
16437554
17500380
18500888
19736600
20941578
21984377
221027176
231069975
241112774
251155573
261662216
271776201
282087008
295331625
306825024
317014400

[1,28,35,1936,2761,3421,3732,4043,4354,281048,
 289820,333293,420239,428752,430686,437554,500380,
 500888,736600,941578,984377,1027176,1069975,
 1112774,1155573,1662216,1776201,2087008,5331625,
 6825024,7014400]