A291680 - OEIS

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A291680 as a triangular array

											1
										0		1
									0		1		1
								0		1		3		2
							0		1		9		8		4
						0		1		25		36		20		10
					0		1		71		156		108		58		26
				0		1		205		666		586		340		170		74
			0		1		607		2860		3098		2014		1078		528		218
		0		1		1833		12336		16230		11888		6772		3550		1672		672
	0		1		5635		53518		85150		69274		42366		23284		11840		5454		2126

A291680 as a square array

1	0	0	0	0	0	0	0	0	0	0
1	1	1	1	1	1	1	1	1	1
1	3	9	25	71	205	607	1833	5635
2	8	36	156	666	2860	12336	53518
4	20	108	586	3098	16230	85150
10	58	340	2014	11888	69274
26	170	1078	6772	42366
74	528	3550	23284
218	1672	11840
672	5454
2126

A291680 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0
	1	1	1	1	1	1	1	1	1	1
		1	3	9	25	71	205	607	1833	5635
			2	8	36	156	666	2860	12336	53518
				4	20	108	586	3098	16230	85150
					10	58	340	2014	11888	69274
						26	170	1078	6772	42366
							74	528	3550	23284
								218	1672	11840
									672	5454
										2126