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A273316 as a simple table

na(n)
01
19
233
381
4161
5281
6449
7673
8961
91321
101761
112289
122913
133641
144481
155441
166529
177753
189121
1910641
2012321
2114169
2216193
2318401
2420801
2523401
2626209
2729233
2832481
2935961
3039681
3143649
3247873
3352361
3457121
3562161
3667489
3773113
3879041
3985281
4091841
4198729

[1,9,33,81,161,281,449,673,961,1321,1761,2289,
 2913,3641,4481,5441,6529,7753,9121,10641,12321,
 14169,16193,18401,20801,23401,26209,29233,32481,
 35961,39681,43649,47873,52361,57121,62161,67489,
 73113,79041,85281,91841,98729]