(5^n - 3^n)/2.
0, 1, 8, 49, 272, 1441, 7448, 37969, 192032, 966721, 4853288, 24325489
2 seqfan posts
Sun May 23 17:53:23 CEST 2010 [seqfan] Re: 3D version of A000938: 3-in-line inside the nXnXn cube
Sun May 23 12:34:55 CEST 2010 [seqfan] Re: 3D version of A000938: 3-in-line inside the nXnXn cube
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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