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A373277 as a simple table

na(n)
11
23
316
484
5480
62792
716807
8102900
9640528
104035120
1125679568
12164775800
131064714400
146920635197
1545214871360
16296722542900
171954878268800
1812923917122536
1985705978837392
20569944757250960
213799631728452112
2225388448354582216
23169992219503608176

[1,3,16,84,480,2792,16807,102900,640528,4035120,
 25679568,164775800,1064714400,6920635197,
 45214871360,296722542900,1954878268800,
 12923917122536,85705978837392,569944757250960,
 3799631728452112,25388448354582216,
 169992219503608176]