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A300945 as a simple table

na(n)
01
11
21
31
43
525
61
75
843
9425
101
117
1265
13661
147025
151
169
1791
18965
1910515
20116625
211
2211
23121
241345
2515105
26171097
271951625
281
2913
30155
311809
3220995
33243525
342828101
3532903225
361
3715
38193
392365
4028401
41337877
424001345
4347284251
44558265825

[1,1,1,1,3,25,1,5,43,425,1,7,65,661,7025,1,9,91,
 965,10515,116625,1,11,121,1345,15105,171097,
 1951625,1,13,155,1809,20995,243525,2828101,
 32903225,1,15,193,2365,28401,337877,4001345,
 47284251,558265825]