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A228935 as a simple table

na(n)
00
13
2-9
315
4-21
527
6-33
739
8-45
951
10-57
1163
12-69
1375
14-81
1587
16-93
1799
18-105
19111
20-117
21123
22-129
23135
24-141
25147
26-153
27159
28-165
29171
30-177
31183
32-189
33195
34-201
35207
36-213
37219
38-225
39231
40-237
41243
42-249
43255
44-261
45267
46-273
47279
48-285
49291

[0,3,-9,15,-21,27,-33,39,-45,51,-57,63,-69,75,-81,
 87,-93,99,-105,111,-117,123,-129,135,-141,147,
 -153,159,-165,171,-177,183,-189,195,-201,207,-213,
 219,-225,231,-237,243,-249,255,-261,267,-273,279,
 -285,291]