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A143887 as a simple table

na(n)
01
12
23
335
460
52459
62907
7447758
8410457
9237456332
10154828648
11342431110933
12169227858597
131508376191950535
14537887672115734

[1,2,3,35,60,2459,2907,447758,410457,237456332,
 154828648,342431110933,169227858597,
 1508376191950535,537887672115734]