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A241864 as a simple table

na(n)
41
50
65
75
821
935
1085
11175
12366
13730
141481
152925
165726
1711110
1821375
1940766
2077266
21145495
22272290
23506836
24938783
251730725
263176920
275808020
2810578162
2919197898
3034725765
3162616485
32112574807
33201827366
34360885835
35643679795
361145341756
372033369086

[1,0,5,5,21,35,85,175,366,730,1481,2925,5726,
 11110,21375,40766,77266,145495,272290,506836,
 938783,1730725,3176920,5808020,10578162,19197898,
 34725765,62616485,112574807,201827366,360885835,
 643679795,1145341756,2033369086]