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A075509 as a simple table

na(n)
01
11
211
3131
41761
527601
6506651
710674211
8251686881
96524202561
10183991725451
115605930566051
12183428104316161
136409252239788881
14237948848526923611
159346097294356706051
16386966245108218203201
1716836505067572362863361
18767645305770283165781131

[1,1,11,131,1761,27601,506651,10674211,251686881,
 6524202561,183991725451,5605930566051,
 183428104316161,6409252239788881,
 237948848526923611,9346097294356706051,
 386966245108218203201,16836505067572362863361,
 767645305770283165781131]