A290724 - OEIS

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A290724 as a triangular array

										1
									1		1
								0		4		1
							0		2		11		1
						0		0		18		26		1
					0		0		6		100		57		1
				0		0		0		96		444		120		1
			0		0		0		24		900		1734		247		1
		0		0		0		0		600		6480		6246		502		1
	0		0		0		0		120		8520		39762		21320		1013		1
0		0		0		0		0		4320		90600		219312		70128		2036		1

A290724 as a square array

1	1	0	0	0	0	0	0	0	0	0
1	4	2	0	0	0	0	0	0	0
1	11	18	6	0	0	0	0	0
1	26	100	96	24	0	0	0
1	57	444	900	600	120	0
1	120	1734	6480	8520	4320
1	247	6246	39762	90600
1	502	21320	219312
1	1013	70128
1	2036
1

A290724 as an upper right triangle

1	1	0	0	0	0	0	0	0	0	0
	1	4	2	0	0	0	0	0	0	0
		1	11	18	6	0	0	0	0	0
			1	26	100	96	24	0	0	0
				1	57	444	900	600	120	0
					1	120	1734	6480	8520	4320
						1	247	6246	39762	90600
							1	502	21320	219312
								1	1013	70128
									1	2036
										1