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A366215 as a simple table

na(n)
01
15
226
3200
41995
522522
6272152
73437280
844806905
9598204475
108137535934
11112382617018
121571496538035
1322205618546014
14316570999534832
154547819503936622
1665770112191659609
17956743348385310031
1813989838139093922658
19205511713513718581234

[1,5,26,200,1995,22522,272152,3437280,44806905,
 598204475,8137535934,112382617018,1571496538035,
 22205618546014,316570999534832,4547819503936622,
 65770112191659609,956743348385310031,
 13989838139093922658,205511713513718581234]