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A109285 as a simple table

na(n)
01
13
29
363
4492
54545
646935
7530562
86485211
984764205
101176089460
1117217555903
12264670166322
134255132537038
1471307312415452
151242006842599569
1622428783284638182
17419022897322142115
188083317501072692514

[1,3,9,63,492,4545,46935,530562,6485211,84764205,
 1176089460,17217555903,264670166322,4255132537038,
 71307312415452,1242006842599569,22428783284638182,
 419022897322142115,8083317501072692514]