A105711 - OEIS

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A105711 as a simple table

n	a(n)
0	0
1	2178309
2	75025
3	10946
4	5702887
5	39088169
6	2504730781961
7	102334155
8	1548008755920
9	20365011074
10	2504730781961
11	4052739537881
12	10610209857723
13	308061521170129
14	1100087778366101931
15	160500643816367088

[0,2178309,75025,10946,5702887,39088169, 2504730781961,102334155,1548008755920,20365011074, 2504730781961,4052739537881,10610209857723, 308061521170129,1100087778366101931, 160500643816367088]