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A305990 as a simple table

na(n)
01
13
211
358
4409
53606
638149
7470856
86641793
9105398650
101858413061
1136044759796
12762659322385
1317481598316742
14431535346662645
1511413394655983536
16321989729198400385
179651573930139850610
18306321759739045148293
1910262156907184058219340

[1,3,11,58,409,3606,38149,470856,6641793,
 105398650,1858413061,36044759796,762659322385,
 17481598316742,431535346662645,11413394655983536,
 321989729198400385,9651573930139850610,
 306321759739045148293,10262156907184058219340]