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A133628 as a simple table

na(n)
11
24
38
420
536
684
7148
8340
9596
101364
112388
125460
139556
1421844
1538228
1687380
17152916
18349524
19611668
201398100
212446676
225592404
239786708
2422369620
2539146836
2689478484
27156587348
28357913940
29626349396
301431655764
312505397588

[1,4,8,20,36,84,148,340,596,1364,2388,5460,9556,
 21844,38228,87380,152916,349524,611668,1398100,
 2446676,5592404,9786708,22369620,39146836,
 89478484,156587348,357913940,626349396,1431655764,
 2505397588]