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A217451 as a simple table

na(n)
13
215
369
4253
51049
64205
716887
868015
9273471
101100135
114425449
1217801365
1371607677
14288046417
151158686263
164660895899
1718748771139
1875418217399
19303374944277
201220346484777
214908927310389
2219746496259789
2379431633434755

[3,15,69,253,1049,4205,16887,68015,273471,1100135,
 4425449,17801365,71607677,288046417,1158686263,
 4660895899,18748771139,75418217399,303374944277,
 1220346484777,4908927310389,19746496259789,
 79431633434755]