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A301947 as a simple table

na(n)
12
216
3123
4947
57326
656710
7439078
83399722
926323903
10203825456
111578217598
1212220118582
1394620225492
14732643232114
155672847473255
1643924787764759
17340109088005893
182633460459021237
1920390851741033347
20157886112662767667

[2,16,123,947,7326,56710,439078,3399722,26323903,
 203825456,1578217598,12220118582,94620225492,
 732643232114,5672847473255,43924787764759,
 340109088005893,2633460459021237,
 20390851741033347,157886112662767667]