A221666 - OEIS

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A221666 as a triangular array

								2
							2		4
						8		12		8
					16		64		48		16
				24		256		512		256		32
			64		992		3772		3772		856		64
		128		4096		31744		63200		32768		4096		128
	232		16384		262144		1048576		1048576		262144		15872		256
512		65344		2097152		16777216		33421056		16777216		2097152		65344

A221666 as a square array

2	2	8	16	24	64	128	232	512
4	12	64	256	992	4096	16384	65344
8	48	512	3772	31744	262144	2097152
16	256	3772	63200	1048576	16777216
32	856	32768	1048576	33421056
64	4096	262144	16777216
128	15872	2097152
256	65344

A221666 as an upper right triangle

2	2	8	16	24	64	128	232	512
	4	12	64	256	992	4096	16384	65344
		8	48	512	3772	31744	262144	2097152
			16	256	3772	63200	1048576	16777216
				32	856	32768	1048576	33421056
					64	4096	262144	16777216
						128	15872	2097152
							256	65344