A187988 - OEIS

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A187988 as a triangular array

											0
										0		1
									0		2		3
								0		3		5		9
							0		4		7		15		36
						0		5		9		22		57		117
					0		6		11		30		82		181		411
				0		7		13		39		111		260		632		1452
			0		8		15		49		144		355		912		2199		5040
		0		9		17		60		181		467		1257		3158		7593		17829
	0		10		19		72		222		597		1673		4357		10920		26706		62870

A187988 as a square array

0	0	0	0	0	0	0	0	0	0	0
1	2	3	4	5	6	7	8	9	10
3	5	7	9	11	13	15	17	19
9	15	22	30	39	49	60	72
36	57	82	111	144	181	222
117	181	260	355	467	597
411	632	912	1257	1673
1452	2199	3158	4357
5040	7593	10920
17829	26706
62870

A187988 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	1	2	3	4	5	6	7	8	9	10
		3	5	7	9	11	13	15	17	19
			9	15	22	30	39	49	60	72
				36	57	82	111	144	181	222
					117	181	260	355	467	597
						411	632	912	1257	1673
							1452	2199	3158	4357
								5040	7593	10920
									17829	26706
										62870