A271242 - OEIS

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A271242 as a simple table

n	a(n)
1	0
2	0
3	76
4	33672
5	28240419
6	56147799704
7	276127405321884
8	3458900532989376102
9	112196911041806546125391
10	9529052847155132258919834684

[0,0,76,33672,28240419,56147799704, 276127405321884,3458900532989376102, 112196911041806546125391, 9529052847155132258919834684]