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A253774 as a simple table

na(n)
11
23
315
481
5327
6357
7685
8831
9861
101405
1138571
1278127
13216487
14546121
15622615

[1,3,15,81,327,357,685,831,861,1405,38571,78127,
 216487,546121,622615]