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A050826 as a simple table

na(n)
11
21
33
43
55
67
77
89
911
1013
1115
1217
1317
1419
1519
1621
1723
1825
1927
2029
2129
2231
2333
2435
2537
2637
2739
2839
2941
3043
3143
3245
3345
3445
3547
3649
3751
3853
3953
4055
4157
4259
4359
4461
4563
4663
4765
4867
4969
5069
5171
5273
5375
5477
5577
5679
5781
5881
5983
6085
6185
6287
6387
6489
6591
6693
6793
6893
6995
7095
7197
7297

[1,1,3,3,5,7,7,9,11,13,15,17,17,19,19,21,23,25,27,
 29,29,31,33,35,37,37,39,39,41,43,43,45,45,45,47,
 49,51,53,53,55,57,59,59,61,63,63,65,67,69,69,71,
 73,75,77,77,79,81,81,83,85,85,87,87,89,91,93,93,
 93,95,95,97,97]