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A341248 as a simple table

na(n)
11
24
318
486
5414
61998
79646
846574
9224878
101085806
115242734
1225314158
13122227566
14590166894
152849577838
1613758978926
1766434227054
18320772823918
191548828203886
207478404111214
2136108929260398
22174349333486446
23841833050987374
244064729537895278

[1,4,18,86,414,1998,9646,46574,224878,1085806,
 5242734,25314158,122227566,590166894,2849577838,
 13758978926,66434227054,320772823918,
 1548828203886,7478404111214,36108929260398,
 174349333486446,841833050987374,4064729537895278]