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A228111 as a simple table

na(n)
14
221
3143
41063
58385
668929
7584467
85074924
944885325
10402777151
113656032622
1233492393634
13309106153431
142870123507479
1526783122426197
16250971797533095
172359952229466124
1822256979400698116
19210440626023838163
201994088284872617955
2118931694933036811169

[4,21,143,1063,8385,68929,584467,5074924,44885325,
 402777151,3656032622,33492393634,309106153431,
 2870123507479,26783122426197,250971797533095,
 2359952229466124,22256979400698116,
 210440626023838163,1994088284872617955,
 18931694933036811169]