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A165452 as a simple table

na(n)
11
21
31
43
55
617
745
8184
9748
104143
1126532
12221032
132326853
1432202266
15589436301
1614459238676
17477812658943

[1,1,1,3,5,17,45,184,748,4143,26532,221032,
 2326853,32202266,589436301,14459238676,
 477812658943]