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A168858 as a simple table

na(n)
01
137
21332
347952
41726272
562145792
62237248512
780540946432
82899474071552
9104381066575872
103757718396731392
11135277862282330112
124870003042163884032
13175320109517899825152
146311523942644393705472

[1,37,1332,47952,1726272,62145792,2237248512,
 80540946432,2899474071552,104381066575872,
 3757718396731392,135277862282330112,
 4870003042163884032,175320109517899825152,
 6311523942644393705472]