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A212493 as a simple table

na(n)
10
25
33
43
53
617
713
823
919
1019
1137
1231
1331
1447
1543
1659
1753
1867
1961
200
2179
2273
2373
2473
2573
260
27107
28103
29127
30131
31109
32113
33113
34151
35113
36139
37163
38157
39157
40179
41173
420
43223
44197
45193
46233
47193
48191
49191
50193
51199
520
530
54257
55251
56251
570
58277
59271
60271

[0,5,3,3,3,17,13,23,19,19,37,31,31,47,43,59,53,67,
 61,0,79,73,73,73,73,0,107,103,127,131,109,113,113,
 151,113,139,163,157,157,179,173,0,223,197,193,233,
 193,191,191,193,199,0,0,257,251,251,0,277,271,271]