A072248 - OEIS

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A072248 as a triangular array

										1
									1		2
								1		7		4
							1		20		26		8
						1		54		126		76		16
					1		143		548		504		200		32
				1		376		2259		2900		1656		496		64
			1		986		9034		15506		11528		4896		1184		128
		1		2583		35469		79354		73172		39552		13536		2752		256
	1		6764		137644		394642		439272		285992		123904		35712		6272		512

A072248 as a square array

1	1	1	1	1	1	1	1	1	1
2	7	20	54	143	376	986	2583	6764
4	26	126	548	2259	9034	35469	137644
8	76	504	2900	15506	79354	394642
16	200	1656	11528	73172	439272
32	496	4896	39552	285992
64	1184	13536	123904
128	2752	35712
256	6272
512

A072248 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	2	7	20	54	143	376	986	2583	6764
		4	26	126	548	2259	9034	35469	137644
			8	76	504	2900	15506	79354	394642
				16	200	1656	11528	73172	439272
					32	496	4896	39552	285992
						64	1184	13536	123904
							128	2752	35712
								256	6272
									512