A203398 - OEIS

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A203398 as a triangular array

												2
											2		1
										2		0		2
									2		1		0		3
								2		0		0		0		6
							2		1		2		0		0		9
						2		0		0		0		0		0		18
					2		1		0		3		0		0		0		30
				2		0		2		0		0		0		0		0		56
			2		1		0		0		6		0		0		0		0		99
		2		0		0		0		0		0		0		0		0		0		186
	2		1		2		3		0		9		0		0		0		0		0		335

A203398 as a square array

2	2	2	2	2	2	2	2	2	2	2	2
1	0	1	0	1	0	1	0	1	0	1
2	0	0	2	0	0	2	0	0	2
3	0	0	0	3	0	0	0	3
6	0	0	0	0	6	0	0
9	0	0	0	0	0	9
18	0	0	0	0	0
30	0	0	0	0
56	0	0	0
99	0	0
186	0
335

A203398 as an upper right triangle

2	2	2	2	2	2	2	2	2	2	2	2
	1	0	1	0	1	0	1	0	1	0	1
		2	0	0	2	0	0	2	0	0	2
			3	0	0	0	3	0	0	0	3
				6	0	0	0	0	6	0	0
					9	0	0	0	0	0	9
						18	0	0	0	0	0
							30	0	0	0	0
								56	0	0	0
									99	0	0
										186	0
											335