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A202996 as a simple table

na(n)
10
20
30
40
57
60
77
87
917
1023
1119
127
1319
1419
1511
1611
1711
187
1919
2037
217
2219
2323
2419
2513
2631
2729
2817
297
3023
3129
3223
3359
34113
3519
3623
3731
38151
3919
407
4123
4237
4373
447
4519
4619
4741
4819
497
5031
5153
5241
5317
5443
5511
5617
5759
5873
5919
60173
6123
6247
6319
6453
6511
6631
6719
6823

[0,0,0,0,7,0,7,7,17,23,19,7,19,19,11,11,11,7,19,
 37,7,19,23,19,13,31,29,17,7,23,29,23,59,113,19,23,
 31,151,19,7,23,37,73,7,19,19,41,19,7,31,53,41,17,
 43,11,17,59,73,19,173,23,47,19,53,11,31,19,23]