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A299576 as a simple table

na(n)
11
21
310
410
527
663
7115
8267
9569
101193
112587
125521
1311791
1425273
1554049
16115633
17247475
18529485
191132947
202424265
215187219
2211099285
2323749619
2450817867
25108736971
26232668795
27497850429
281065270295
292279401223
304877325533

[1,1,10,10,27,63,115,267,569,1193,2587,5521,11791,
 25273,54049,115633,247475,529485,1132947,2424265,
 5187219,11099285,23749619,50817867,108736971,
 232668795,497850429,1065270295,2279401223,
 4877325533]