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A005731 as a simple table

na(n)
11
21
32
43
52
65
72
821
92
103
111
1255
133
1413
152
1621
172
1885
191
2057
212
221
231
248855
252
2615
272
2839
291
3029
3110
32651
332
341
352
36935
371
3837
392
40399
411
422665
431
44129
452
461
471
48416185
492
5021
512
5215
531
544505
552
5639
5714
581
591
60357599
611
62305
632
64651
656
665
671
68201
692
7039
711
7210687985
732
7473
752

[1,1,2,3,2,5,2,21,2,3,1,55,3,13,2,21,2,85,1,57,2,
 1,1,8855,2,15,2,39,1,29,10,651,2,1,2,935,1,37,2,
 399,1,2665,1,129,2,1,1,416185,2,21,2,15,1,4505,2,
 39,14,1,1,357599,1,305,2,651,6,5,1,201,2,39,1,
 10687985,2,73,2]