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A046739 as a simple table

na(n)
10
21
31
41
51
67
71
81
921
1021
111
121
1351
14161
1551
161
171
18113
19813
20813
21113
221
231
24239
253361
267631
273361
28239
291
301
31493
3212421
3353833
3453833
3512421
36493
371
381
391003
4042865
41320107
42607009
43320107
4442865
451003
461
471
482025
49141549
501704693
515494017

[0,1,1,1,1,7,1,1,21,21,1,1,51,161,51,1,1,113,813,
 813,113,1,1,239,3361,7631,3361,239,1,1,493,12421,
 53833,53833,12421,493,1,1,1003,42865,320107,
 607009,320107,42865,1003,1,1,2025,141549,1704693,
 5494017]