A172249 - OEIS

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A172249 as a triangular array

											1
										0		3
									0		1		8
								0		0		6		21
							0		0		1		25		55
						0		0		0		9		90		144
					0		0		0		1		51		300		377
				0		0		0		0		12		234		954		987
			0		0		0		0		1		86		951		2939		2584
		0		0		0		0		0		15		480		3573		8850		6765
	0		0		0		0		0		1		130		2305		12707		26195		17711
0		0		0		0		0		0		18		855

A172249 as a square array

1	0	0	0	0	0	0	0	0	0	0	0
3	1	0	0	0	0	0	0	0	0	0
8	6	1	0	0	0	0	0	0	0
21	25	9	1	0	0	0	0	0
55	90	51	12	1	0	0	0
144	300	234	86	15	1	0
377	954	951	480	130	18
987	2939	3573	2305	855
2584	8850	12707
6765	26195
17711

A172249 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0	0
	3	1	0	0	0	0	0	0	0	0	0
		8	6	1	0	0	0	0	0	0	0
			21	25	9	1	0	0	0	0	0
				55	90	51	12	1	0	0	0
					144	300	234	86	15	1	0
						377	954	951	480	130	18
							987	2939	3573	2305	855
								2584	8850	12707
									6765	26195
										17711