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A042955 as a simple table

na(n)
01
11
21
32
43
53
65
77
89
911
1015
1119
1225
1331
1439
1549
1661
1773
1891
19111
20135
21163
22197
23235
24283
25335
26399
27473
28559
29655
30773
31903
321057
331233
341435
351663
361933
372231
382575
392969
403419
413921
424501
435151
445891
456723
467665
478723
489925
4911261
5012773

[1,1,1,2,3,3,5,7,9,11,15,19,25,31,39,49,61,73,91,
 111,135,163,197,235,283,335,399,473,559,655,773,
 903,1057,1233,1435,1663,1933,2231,2575,2969,3419,
 3921,4501,5151,5891,6723,7665,8723,9925,11261,
 12773]