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A097121 as a simple table

na(n)
01
11
21
31
45
517
641
781
8157
9337
10785
111825
124085
138913
1419449
1542993
1695885
17213777
18474465
191049921
202323685
215150865
2211429321
2325358737
2456233853
25124658129
26276348849
27612740961
281358769877
293013068113
306681031065
3114813622577

[1,1,1,1,5,17,41,81,157,337,785,1825,4085,8913,
 19449,42993,95885,213777,474465,1049921,2323685,
 5150865,11429321,25358737,56233853,124658129,
 276348849,612740961,1358769877,3013068113,
 6681031065,14813622577]