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A042916 as a simple table

na(n)
031
163
2409
3881
455031
5110943
6720689
71552321
896964591
9195481503
101269853609
112735188721
12170851554311
13344438297343
142237481338369
154819400974081
16301040341731391
17606900084436863
183942440848352569
198491781781142001
20530432911279156631

[31,63,409,881,55031,110943,720689,1552321,
 96964591,195481503,1269853609,2735188721,
 170851554311,344438297343,2237481338369,
 4819400974081,301040341731391,606900084436863,
 3942440848352569,8491781781142001,
 530432911279156631]