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A027537 as a simple table

na(n)
11
23
31
419
516
61
7201
8319
955
101
113131
128296
132816
14156
151
1666883
17274089
18158774
1918254
20399
211
221866103
2311233692
2410137723
252064028
2699093
27960
281
2965599089
30559402687
31738815949
32240080355
3321320275
34481821
352223
361
372826880471

[1,3,1,19,16,1,201,319,55,1,3131,8296,2816,156,1,
 66883,274089,158774,18254,399,1,1866103,11233692,
 10137723,2064028,99093,960,1,65599089,559402687,
 738815949,240080355,21320275,481821,2223,1,
 2826880471]