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A131401 as a simple table

na(n)
11
20
32
43
55
64
713
87
917
1011
1189
126
13233
1429
1510
1647
171597
1819
1937
2015
2126
22199
2328657
2414
2525
26521
2753
2839
29514229
3020
31557
322207
33178
343571
3565
3627
3773
389349
39466
4035
412789
4252
43433494437
4443
4585
46139
472971215073
4864
4997
50101
513194
52699
53953
54212
55445
5649
5774
5859

[1,0,2,3,5,4,13,7,17,11,89,6,233,29,10,47,1597,19,
 37,15,26,199,28657,14,25,521,53,39,514229,20,557,
 2207,178,3571,65,27,73,9349,466,35,2789,52,
 433494437,43,85,139,2971215073,64,97,101,3194,699,
 953,212,445,49,74,59]