A305175 - OEIS

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A305175 as a triangular array

											0
										0		0
									0		3		0
								0		5		5		0
							0		18		4		18		0
						0		61		46		46		61		0
					0		209		151		410		151		209		0
				0		702		543		2397		2397		543		702		0
			0		2381		2120		13970		26810		13970		2120		2381		0
		0		8069		8155		93426		218476		218476		93426		8155		8069		0
	0		27330		30205		586718

A305175 as a square array

0	0	0	0	0	0	0	0	0	0	0
0	3	5	18	61	209	702	2381	8069	27330
0	5	4	46	151	543	2120	8155	30205
0	18	46	410	2397	13970	93426	586718
0	61	151	2397	26810	218476
0	209	543	13970	218476
0	702	2120	93426
0	2381	8155
0	8069
0

A305175 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	0	3	5	18	61	209	702	2381	8069	27330
		0	5	4	46	151	543	2120	8155	30205
			0	18	46	410	2397	13970	93426	586718
				0	61	151	2397	26810	218476
					0	209	543	13970	218476
						0	702	2120	93426
							0	2381	8155
								0	8069
									0