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A090016 as a simple table

na(n)
17
249
3399
43689
538087
6433713
75394991
872737161
91056085191
1016423175153
11272275569167
124792916427369
1389267526953479
141753598009244529
1536232438035285807
16785431570870425353
1717822981129678644871

[7,49,399,3689,38087,433713,5394991,72737161,
 1056085191,16423175153,272275569167,4792916427369,
 89267526953479,1753598009244529,36232438035285807,
 785431570870425353,17822981129678644871]