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A149520 as a simple table

na(n)
01
11
25
311
449
5157
6705
72447
811257
942215
10196039
11760457
123578149
1314323343
1467808827
15276672895
161319635789
175479101635
1826238372575
19110300159347
20530694254439
212256204576997
2210885696948113
2346685442018077
24225970476634309
25976854488592583
264737916116106503
2720615097104712731

[1,1,5,11,49,157,705,2447,11257,42215,196039,
 760457,3578149,14323343,67808827,276672895,
 1319635789,5479101635,26238372575,110300159347,
 530694254439,2256204576997,10885696948113,
 46685442018077,225970476634309,976854488592583,
 4737916116106503,20615097104712731]