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A019432 as a simple table

na(n)
00
18
21
325
41
543
61
761
81
979
101
1197
121
13115
141
15133
161
17151
181
19169
201
21187
221
23205
241
25223
261
27241
281
29259
301
31277
321
33295
341
35313
361
37331
381
39349
401
41367
421
43385
441
45403
461
47421
481
49439
501
51457
521
53475
541
55493
561
57511
581
59529
601
61547
621
63565
641
65583
661
67601
681
69619
701
71637
721
73655

[0,8,1,25,1,43,1,61,1,79,1,97,1,115,1,133,1,151,1,
 169,1,187,1,205,1,223,1,241,1,259,1,277,1,295,1,
 313,1,331,1,349,1,367,1,385,1,403,1,421,1,439,1,
 457,1,475,1,493,1,511,1,529,1,547,1,565,1,583,1,
 601,1,619,1,637,1,655]