A060516 - OEIS

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A060516 as a simple table

n	a(n)
0	1
1	1
2	5
3	26
4	328
5	9700
6	711836
7	111817032
8	35130791054
9	21495893690664
10	25409892375220474
11	58052821046020873856
12	257486314335782707924088
13	2230295461268044025586193298
14	37948847404292424846290915818844

[1,1,5,26,328,9700,711836,111817032,35130791054, 21495893690664,25409892375220474, 58052821046020873856,257486314335782707924088, 2230295461268044025586193298, 37948847404292424846290915818844]