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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A253448 as a simple table

na(n)
181
21975
37782
415730
544242
6147332
7526430
81956194
97444718
1028766354
11112273790
12441202754
131742089358

[81,1975,7782,15730,44242,147332,526430,1956194,
 7444718,28766354,112273790,441202754,1742089358]