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A187367 as a simple table

na(n)
13
21
35
41
51
63
75
811
91
101
1119
1215
1313
149
1535
1615
175
181
1935
2029
2131
2229
2313
2429
2527
263
2727
2825
2931
3055
3119
325
3377
3419
3557
3619
3733
381
3917
409
4127
429
4329
445
451
465
4735
487
4973
501
51183
5261
5331
5433
559
5611
571
5829
59215
60139
6133
6215
6335
6441
6537
66121
6763
6815
6923
7025

[3,1,5,1,1,3,5,11,1,1,19,15,13,9,35,15,5,1,35,29,
 31,29,13,29,27,3,27,25,31,55,19,5,77,19,57,19,33,
 1,17,9,27,9,29,5,1,5,35,7,73,1,183,61,31,33,9,11,
 1,29,215,139,33,15,35,41,37,121,63,15,23,25]