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A003561 as a simple table

na(n)
11
25
34
43
52
63
76
810
911
1016
116
1215
1310
145
159
1627
1721
1812
198
2025
2126
2236
2314
2455
253
2665
2716
2823
2936
3075
314
3233
3341
3418
3520
3615
376
3819
3942
4011
4151
4235
4318
4416
4556
4630
4729
4820
4920
5025
5164
5221
5318
5427
5522
5670
5720
5896
5936
6021
6148
62155
6339
6453
6527
66165
6712
6815

[1,5,4,3,2,3,6,10,11,16,6,15,10,5,9,27,21,12,8,25,
 26,36,14,55,3,65,16,23,36,75,4,33,41,18,20,15,6,
 19,42,11,51,35,18,16,56,30,29,20,20,25,64,21,18,
 27,22,70,20,96,36,21,48,155,39,53,27,165,12,15]