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A013959 as a simple table

na(n)
11
22049
3177148
44196353
548828126
6362976252
71977326744
88594130945
931381236757
10100048830174
11285311670612
12743375541244
131792160394038
144051542498456
158649804864648
1617600780175361
1734271896307634
1864300154115093
19116490258898220
20204900053024478

[1,2049,177148,4196353,48828126,362976252,
 1977326744,8594130945,31381236757,100048830174,
 285311670612,743375541244,1792160394038,
 4051542498456,8649804864648,17600780175361,
 34271896307634,64300154115093,116490258898220,
 204900053024478]