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A176513 as a simple table

na(n)
11
21
31
41
51
63
73
85
97
109
1115
1219
1329
1441
1557
1685
17117
18171
19243
20345
21499
22705
231015
241447
252065
262961
274217
286041
298625
3012323
3117627
3225165
3335991
3451417
3573479
36105035
37150061
38214505
39306513
40438045
41626053
42894619
431278603
441827185

[1,1,1,1,1,3,3,5,7,9,15,19,29,41,57,85,117,171,
 243,345,499,705,1015,1447,2065,2961,4217,6041,
 8625,12323,17627,25165,35991,51417,73479,105035,
 150061,214505,306513,438045,626053,894619,1278603,
 1827185]