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A280807 as a simple table

na(n)
10
272
31578
49715
541931
6155560
7521862
81635481
94878157
1014014639
1139104351
12106631105
13285454905
14752759713
151960409283
165051884455
1712901249792
1832688874902
1982257457021
20205730877021
21511748655573
221266736498098

[0,72,1578,9715,41931,155560,521862,1635481,
 4878157,14014639,39104351,106631105,285454905,
 752759713,1960409283,5051884455,12901249792,
 32688874902,82257457021,205730877021,511748655573,
 1266736498098]