A257618 - OEIS

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A257618 as a triangular array

								1
							2		2
						4		40		4
					8		472		472		8
				16		4928		16992		4928		16
			32		49824		433984		433984		49824		32
		64		499584		9505728		22567168		9505728		499584		64
	128		4999040		192085632		909941120		909941120		192085632		4999040		128

A257618 as a square array

1	2	4	8	16	32	64	128
2	40	472	4928	49824	499584	4999040
4	472	16992	433984	9505728	192085632
8	4928	433984	22567168	909941120
16	49824	9505728	909941120
32	499584	192085632
64	4999040
128

A257618 as an upper right triangle

1	2	4	8	16	32	64	128
	2	40	472	4928	49824	499584	4999040
		4	472	16992	433984	9505728	192085632
			8	4928	433984	22567168	909941120
				16	49824	9505728	909941120
					32	499584	192085632
						64	4999040
							128