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A158827 as a simple table

na(n)
11
24
320
4110
5640
63870
724084
8153306
9993978
106544242
1143652340
12294469974
132006018748
1413784115468
1595444016984
16665407010349
174667570034444
1832922870719664
19233389493503968
201662048903052380
2111885333877149532

[1,4,20,110,640,3870,24084,153306,993978,6544242,
 43652340,294469974,2006018748,13784115468,
 95444016984,665407010349,4667570034444,
 32922870719664,233389493503968,1662048903052380,
 11885333877149532]