A183189 - OEIS

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A183189 as a triangular array

										1
									2		0
								6		1		0
							18		5		0		0
						54		21		1		0		0
					162		81		8		0		0		0
				486		297		45		1		0		0		0
			1458		1053		216		11		0		0		0		0
		4374		3645		945		78		1		0		0		0		0
	13122		12393		3888		450		14		0		0		0		0		0

A183189 as a square array

1	2	6	18	54	162	486	1458	4374	13122
0	1	5	21	81	297	1053	3645	12393
0	0	1	8	45	216	945	3888
0	0	0	1	11	78	450
0	0	0	0	1	14
0	0	0	0	0
0	0	0	0
0	0	0
0	0
0

A183189 as an upper right triangle

1	2	6	18	54	162	486	1458	4374	13122
	0	1	5	21	81	297	1053	3645	12393
		0	0	1	8	45	216	945	3888
			0	0	0	1	11	78	450
				0	0	0	0	1	14
					0	0	0	0	0
						0	0	0	0
							0	0	0
								0	0
									0