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A081649 as a simple table

na(n)
1101
2104
3109
4116
5125
6136
7149
8164
9181
10200
11201
12204
13209
14216
15236
16249
17264
18281
19300
20301
21304
22309
23316
24325
25336
26349
27364
28381
29401
30404
31409
32416
33425
34436
35449
36464
37481
38500
39501
40504
41509
42516
43525
44536
45549
46564
47581
48600
49601
50604
51609

[101,104,109,116,125,136,149,164,181,200,201,204,
 209,216,236,249,264,281,300,301,304,309,316,325,
 336,349,364,381,401,404,409,416,425,436,449,464,
 481,500,501,504,509,516,525,536,549,564,581,600,
 601,604,609]