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A303952 as a simple table

na(n)
01
12
25
317
469
5302
61367
76302
829401
9138356
10655425
113121439
1214930541
1371675840
14345148893
151666432817
168064278289
1739103576700
18189949958333
19924163714217
204502711570989
2121966152501240
22107284324830303

[1,2,5,17,69,302,1367,6302,29401,138356,655425,
 3121439,14930541,71675840,345148893,1666432817,
 8064278289,39103576700,189949958333,924163714217,
 4502711570989,21966152501240,107284324830303]