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A007247 as a simple table

na(n)
01
152
2834
34760
424703
594980
6343998
71077496
83222915
98844712
1023381058
1158359168
12141244796
13327974700
14742169724
151627202744
163490345477
177301071680
1814987511560
1930138820888
2059623576440
21115928963656

[1,52,834,4760,24703,94980,343998,1077496,3222915,
 8844712,23381058,58359168,141244796,327974700,
 742169724,1627202744,3490345477,7301071680,
 14987511560,30138820888,59623576440,115928963656]