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A152599 as a simple table

na(n)
01
14
228
3232
41984
517056
6146752
71262848
810867456
993520384
10804794368
116925699072
1259599458304
13512886194176
144413668442112
1537982050091008
16326856479604736
172812780194955264
1824205524194295808
19208301879603494912
201792552505703399424
2115425902501792055296

[1,4,28,232,1984,17056,146752,1262848,10867456,
 93520384,804794368,6925699072,59599458304,
 512886194176,4413668442112,37982050091008,
 326856479604736,2812780194955264,
 24205524194295808,208301879603494912,
 1792552505703399424,15425902501792055296]