A182411 - OEIS

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A182411 as a triangular array

										1
									2		2
								6		4		6
							20		10		12		20
						70		28		28		40		70
					252		84		72		90		140		252
				924		264		198		220		308		504		924
			3432		858		572		572		728		1092		1848		3432
		12870		2860		1716		1560		1820		2520		3960		6864		12870
	48620		9724		5304		4420		4760		6120		8976

A182411 as a square array

1	2	6	20	70	252	924	3432	12870	48620
2	4	10	28	84	264	858	2860	9724
6	12	28	72	198	572	1716	5304
20	40	90	220	572	1560	4420
70	140	308	728	1820	4760
252	504	1092	2520	6120
924	1848	3960	8976
3432	6864
12870

A182411 as an upper right triangle

1	2	6	20	70	252	924	3432	12870	48620
	2	4	10	28	84	264	858	2860	9724
		6	12	28	72	198	572	1716	5304
			20	40	90	220	572	1560	4420
				70	140	308	728	1820	4760
					252	504	1092	2520	6120
						924	1848	3960	8976
							3432	6864
								12870