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A197404 as a simple table

na(n)
14
220
360
4358
51626
67232
734717
8160988
9748843
103514426
1116448990
1276889286
13359867470
141684122959
157879951514
1636879246800
17172597946528
18807735845097
193780221117751
2017691605965676
2182797291928191
22387496301051514

[4,20,60,358,1626,7232,34717,160988,748843,
 3514426,16448990,76889286,359867470,1684122959,
 7879951514,36879246800,172597946528,807735845097,
 3780221117751,17691605965676,82797291928191,
 387496301051514]