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A176749 as a simple table

na(n)
01
13
25
318
465
5262
61093
74731
820979
994930
10436451
112033321
129577653
1345538184
14218263593
151053456780
165115724797
1724977183908
18122537039845
19603755499411
202986339566083
2114823218200440
2273813096856015
23368631268757920

[1,3,5,18,65,262,1093,4731,20979,94930,436451,
 2033321,9577653,45538184,218263593,1053456780,
 5115724797,24977183908,122537039845,603755499411,
 2986339566083,14823218200440,73813096856015,
 368631268757920]