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A340399 as a simple table

na(n)
01
12
25
38
421
534
689
7144
8377
9610
101597
112584
124181
1310946
1417711
1546368
1675025
17196418
18317811
19832040
201346269
212178309
225702887
239227465
2424157817
2539088169
26102334155
27165580141
28433494437
29701408733
301134903170
312971215073
324807526976
3312586269025

[1,2,5,8,21,34,89,144,377,610,1597,2584,4181,
 10946,17711,46368,75025,196418,317811,832040,
 1346269,2178309,5702887,9227465,24157817,39088169,
 102334155,165580141,433494437,701408733,
 1134903170,2971215073,4807526976,12586269025]