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A027635 as a simple table

na(n)
01
10
25
30
415
51
635
75
869
915
10121
1135
12195
1369
14295
15121
16425
17195
18589
19295
20791
21425
221035
23589
241325
25791
261665
271035
282059
291325
302511
311665
323025
332059
343605
352511
364255
373025
384979
393605
405781
414255
426665
434979
447635
455781
468695
476665
489849
497635
5011101
518695
5212455
539849
5413915

[1,0,5,0,15,1,35,5,69,15,121,35,195,69,295,121,
 425,195,589,295,791,425,1035,589,1325,791,1665,
 1035,2059,1325,2511,1665,3025,2059,3605,2511,4255,
 3025,4979,3605,5781,4255,6665,4979,7635,5781,8695,
 6665,9849,7635,11101,8695,12455,9849,13915]