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A368874 as a simple table

na(n)
11
25
311
417
525
635
745
855
965
1077
1191
12105
13119
14133
15147
16161
17177
18195
19213
20231
21249
22267
23285
24303
25321
26341
27363
28385
29407
30429
31451
32473
33495
34517
35539
36561
37585
38611
39637
40663
41689
42715
43741
44767
45793
46819
47845
48871
49897
50925
51955
52985
531015
541045
551075
561105
571135
581165
591195

[1,5,11,17,25,35,45,55,65,77,91,105,119,133,147,
 161,177,195,213,231,249,267,285,303,321,341,363,
 385,407,429,451,473,495,517,539,561,585,611,637,
 663,689,715,741,767,793,819,845,871,897,925,955,
 985,1015,1045,1075,1105,1135,1165,1195]