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A054910 as a simple table

na(n)
10
21
37
455
5616
63553
74774
860606
9848848
104615164
115400045
126050506
137165445617
1462786368726
1565331413356
1673665056637
1791120102119
18345546645543
19365139931563
20947927729749
213646334336463
227111015101117
23717685292586717
2419480809790808491

[0,1,7,55,616,3553,4774,60606,848848,4615164,
 5400045,6050506,7165445617,62786368726,
 65331413356,73665056637,91120102119,345546645543,
 365139931563,947927729749,3646334336463,
 7111015101117,717685292586717,19480809790808491]