A181886 - OEIS

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A181886 as a triangular array

										0
									1		0
								5		3		0
							22		15		4		0
						94		66		21		6		0
					399		282		92		31		8		0
				1691		1197		393		137		41		9		0
			7164		5073		1668		586		181		47		11		0
		30348		21492		7069		2488		773		208		57		12		0
	128557		91044

A181886 as a square array

0	1	5	22	94	399	1691	7164	30348	128557
0	3	15	66	282	1197	5073	21492	91044
0	4	21	92	393	1668	7069
0	6	31	137	586	2488
0	8	41	181	773
0	9	47	208
0	11	57
0	12
0

A181886 as an upper right triangle

0	1	5	22	94	399	1691	7164	30348	128557
	0	3	15	66	282	1197	5073	21492	91044
		0	4	21	92	393	1668	7069
			0	6	31	137	586	2488
				0	8	41	181	773
					0	9	47	208
						0	11	57
							0	12
								0