A274635 - OEIS

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A274635 as a triangular array

													0
												0		0
											0		0		0
										0		1		0		0
									0		1		1		0		0
								0		3		1		3		0		0
							0		3		3		3		3		0		0
						0		7		3		9		3		7		0		0
					0		7		7		9		9		7		7		0		0
				0		15		7		21		9		21		7		15		0		0
			0		15		15		21		21		21		21		15		15		0		0
		0		31		15		45		21		49		21		45		15		31		0		0
	0		31		31		45		45		49		49		45		45		31		31		0

A274635 as a square array

0	0	0	0	0	0	0	0	0	0	0	0	0
0	0	1	1	3	3	7	7	15	15	31	31
0	0	1	1	3	3	7	7	15	15	31
0	0	3	3	9	9	21	21	45	45
0	0	3	3	9	9	21	21	45
0	0	7	7	21	21	49	49
0	0	7	7	21	21	49
0	0	15	15	45	45
0	0	15	15	45
0	0	31	31
0	0	31
0	0

A274635 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0	0
	0	0	1	1	3	3	7	7	15	15	31	31
		0	0	1	1	3	3	7	7	15	15	31
			0	0	3	3	9	9	21	21	45	45
				0	0	3	3	9	9	21	21	45
					0	0	7	7	21	21	49	49
						0	0	7	7	21	21	49
							0	0	15	15	45	45
								0	0	15	15	45
									0	0	31	31
										0	0	31
											0	0