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A037506 as a simple table

na(n)
11
27
335
4176
5882
64410
722051
8110257
9551285
102756426
1113782132
1268910660
13344553301
141722766507
158613832535
1643069162676
17215345813382
181076729066910
195383645334551
2026918226672757
21134591133363785
22672955666818926

[1,7,35,176,882,4410,22051,110257,551285,2756426,
 13782132,68910660,344553301,1722766507,8613832535,
 43069162676,215345813382,1076729066910,
 5383645334551,26918226672757,134591133363785,
 672955666818926]