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A209008 as a simple table

na(n)
11
23
35
410
516
626
738
855
975
10101
11131
12168
13210
14260
15316
16381
17453
18535
19625
20726
21836
22958
231090
241235
251391
261561
271743
281940
292150
302376
312616
322873
333145
343435
353741
364066
374408
384770
395150
405551
415971
426413
436875
447360
457866
468396
478948
489525
4910125

[1,3,5,10,16,26,38,55,75,101,131,168,210,260,316,
 381,453,535,625,726,836,958,1090,1235,1391,1561,
 1743,1940,2150,2376,2616,2873,3145,3435,3741,4066,
 4408,4770,5150,5551,5971,6413,6875,7360,7866,8396,
 8948,9525,10125]