A156837 - OEIS

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A156837 as a triangular array

												1
											2		1
										2		0		1
									3		3		0		1
								2		0		0		0		1
							4		4		4		0		0		1
						2		0		0		0		0		0		1
					4		7		0		5		0		0		0		1
				3		0		7		0		0		0		0		0		1
			4		6		0		0		6		0		0		0		0		1
		2		0		0		0		0		0		0		0		0		0		1
	6		12		14		11		0		7		0		0		0		0		0		1

A156837 as a square array

1	2	2	3	2	4	2	4	3	4	2	6
1	0	3	0	4	0	7	0	6	0	12
1	0	0	4	0	0	7	0	0	14
1	0	0	0	5	0	0	0	11
1	0	0	0	0	6	0	0
1	0	0	0	0	0	7
1	0	0	0	0	0
1	0	0	0	0
1	0	0	0
1	0	0
1	0
1

A156837 as an upper right triangle

1	2	2	3	2	4	2	4	3	4	2	6
	1	0	3	0	4	0	7	0	6	0	12
		1	0	0	4	0	0	7	0	0	14
			1	0	0	0	5	0	0	0	11
				1	0	0	0	0	6	0	0
					1	0	0	0	0	0	7
						1	0	0	0	0	0
							1	0	0	0	0
								1	0	0	0
									1	0	0
										1	0
											1