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A374345 as a simple table

na(n)
01
11
25
359
42454
5177998
636960008
77670953632
82822399976144
91061085324952592
10598646324654443008

[1,1,5,59,2454,177998,36960008,7670953632,
 2822399976144,1061085324952592,598646324654443008]