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A056259 as a simple table

na(n)
11
23
39
419
521
657
773
881
9207
10349
11421
123811
133981
1420923
1523785
1638851
1756041
1868503
1974433

[1,3,9,19,21,57,73,81,207,349,421,3811,3981,20923,
 23785,38851,56041,68503,74433]