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A282563 as a simple table

na(n)
11
28
368
4596
55300
647444
7425972
83829652
934450484
10309988820
112789637236
1225105686548
13225946984628
142033506084436
1518301487651060
16164713120424084
171482417010074932
1813341748795707092
19120075721981494644
201080681429113975060

[1,8,68,596,5300,47444,425972,3829652,34450484,
 309988820,2789637236,25105686548,225946984628,
 2033506084436,18301487651060,164713120424084,
 1482417010074932,13341748795707092,
 120075721981494644,1080681429113975060]