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A220266 as a simple table

na(n)
01
14
218
3144
41604
522944
6400624
78259680
8196358760
95287879092
10159094582274
115288950560768
12192527721428892
137616404083126180
14325361411700398046
1514926683772801407168
16731947910056020737036
1738204289826040411251632
182114787166947079113869760

[1,4,18,144,1604,22944,400624,8259680,196358760,
 5287879092,159094582274,5288950560768,
 192527721428892,7616404083126180,
 325361411700398046,14926683772801407168,
 731947910056020737036,38204289826040411251632,
 2114787166947079113869760]