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A090442 as a simple table

na(n)
11
26
344
4360
53152
628896
7273856
82661504
926380544
10265655808
112710244352
1227952883712
13290977271808
143053105307648
1532256844087296
16342870535471104
173664053076557824
1839342496410894336
19424243929700630528
204592400943255388160
2149885822426526253056

[1,6,44,360,3152,28896,273856,2661504,26380544,
 265655808,2710244352,27952883712,290977271808,
 3053105307648,32256844087296,342870535471104,
 3664053076557824,39342496410894336,
 424243929700630528,4592400943255388160,
 49885822426526253056]