A283130 - OEIS

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A283130 as a triangular array

									2
								4		4
							8		16		8
						16		57		57		16
					32		209		378		209		32
				64		768		2521		2521		768		64
			128		2816		16818		30824		16818		2816		128
		256		10329		112276		376359		376359		112276		10329		256
	512		37889		749447		4598361		8402216		4598361		749447		37889		512

A283130 as a square array

2	4	8	16	32	64	128	256	512
4	16	57	209	768	2816	10329	37889
8	57	378	2521	16818	112276	749447
16	209	2521	30824	376359	4598361
32	768	16818	376359	8402216
64	2816	112276	4598361
128	10329	749447
256	37889
512

A283130 as an upper right triangle

2	4	8	16	32	64	128	256	512
	4	16	57	209	768	2816	10329	37889
		8	57	378	2521	16818	112276	749447
			16	209	2521	30824	376359	4598361
				32	768	16818	376359	8402216
					64	2816	112276	4598361
						128	10329	749447
							256	37889
								512