A238450 - OEIS

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A238450 as a triangular array

													1
												0		1
											0		0		1
										0		0		0		1
									0		0		0		0		1
								1		1		1		0		0		1
							1		1		0		1		0		0		1
						2		1		1		1		1		0		0		1
					2		2		2		1		1		1		0		0		1
				3		2		2		1		2		1		1		0		0		1
			3		3		2		2		1		2		1		1		0		0		1
		4		3		3		3		2		2		2		1		1		0		0		1
	4		4		3		3		2		2		2		2		1		1		0		0		1

A238450 as a square array

1	0	0	0	0	1	1	2	2	3	3	4	4
1	0	0	0	1	1	1	2	2	3	3	4
1	0	0	1	0	1	2	2	2	3	3
1	0	0	1	1	1	1	2	3	3
1	0	0	1	1	2	1	2	2
1	0	0	1	1	2	2	2
1	0	0	1	1	2	2
1	0	0	1	1	2
1	0	0	1	1
1	0	0	1
1	0	0
1	0
1

A238450 as an upper right triangle

1	0	0	0	0	1	1	2	2	3	3	4	4
	1	0	0	0	1	1	1	2	2	3	3	4
		1	0	0	1	0	1	2	2	2	3	3
			1	0	0	1	1	1	1	2	3	3
				1	0	0	1	1	2	1	2	2
					1	0	0	1	1	2	2	2
						1	0	0	1	1	2	2
							1	0	0	1	1	2
								1	0	0	1	1
									1	0	0	1
										1	0	0
											1	0
												1