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A007219 as a simple table

na(n)
11
228
32108
4227322
530276740
64541771016
7739092675672
8127674038970623
923085759901610016
104327973308197103600
11835531767841066680300
12165266721954751746697155
1333364181616540879268092840

[1,28,2108,227322,30276740,4541771016,
 739092675672,127674038970623,23085759901610016,
 4327973308197103600,835531767841066680300,
 165266721954751746697155,
 33364181616540879268092840]