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A023515 as a simple table

na(n)
11
25
314
434
576
6142
7220
8322
9436
10666
11898
121146
131516
141762
152020
162490
173126
183598
194086
204756
215182
225766
236556
247386
258632
269796
2710402
2811020
2911662
3012316
3114350
3216636
3317946
3419042
3520710
3622498
3723706
3825590
3927220
4028890

[1,5,14,34,76,142,220,322,436,666,898,1146,1516,
 1762,2020,2490,3126,3598,4086,4756,5182,5766,6556,
 7386,8632,9796,10402,11020,11662,12316,14350,
 16636,17946,19042,20710,22498,23706,25590,27220,
 28890]