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A161691 as a simple table

na(n)
01
146
21080
317249
4210748
52100337
617779207
7131436629
8865982661
95164024608
1028210551124
11142564402050
12671834963239
132972133119783
1412413240052842
1549183360339945
16185647433835908
17670019931232182
182319603230895916

[1,46,1080,17249,210748,2100337,17779207,
 131436629,865982661,5164024608,28210551124,
 142564402050,671834963239,2972133119783,
 12413240052842,49183360339945,185647433835908,
 670019931232182,2319603230895916]