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A140811 as a simple table

na(n)
0-1
15
223
353
495
5149
6215
7293
8383
9485
10599
11725
12863
131013
141175
151349
161535
171733
181943
192165
202399
212645
222903
233173
243455
253749
264055
274373
284703
295045
305399
315765
326143
336533
346935
357349
367775
378213
388663
399125
409599
4110085
4210583
4311093
4411615

[-1,5,23,53,95,149,215,293,383,485,599,725,863,
 1013,1175,1349,1535,1733,1943,2165,2399,2645,2903,
 3173,3455,3749,4055,4373,4703,5045,5399,5765,6143,
 6533,6935,7349,7775,8213,8663,9125,9599,10085,
 10583,11093,11615]