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A131541
as a simple table
n
a(n)
0
0
1
15
2
27
3
24
4
181
5
317
6
2309
7
972
8
25264
9
131979
10
279275
11
279269
12
1727605
13
6030752
14
8760853
15
77235364
[0,15,27,24,181,317,2309,972,25264,131979,279275, 279269,1727605,6030752,8760853,77235364]