A121468 - OEIS

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A121468 as a triangular array

											1
										2		1
									6		3		1
								18		9		4		1
							53		28		12		5		1
						154		85		38		15		6		1
					443		253		117		48		18		7		1
				1264		742		352		149		58		21		8		1
			3582		2151		1041		451		181		68		24		9		1
		10092		6177		3038		1340		550		213		78		27		10		1
	28291		17600		8772		3925		1639		649		245		88		30		11		1

A121468 as a square array

1	2	6	18	53	154	443	1264	3582	10092	28291
1	3	9	28	85	253	742	2151	6177	17600
1	4	12	38	117	352	1041	3038	8772
1	5	15	48	149	451	1340	3925
1	6	18	58	181	550	1639
1	7	21	68	213	649
1	8	24	78	245
1	9	27	88
1	10	30
1	11
1

A121468 as an upper right triangle

1	2	6	18	53	154	443	1264	3582	10092	28291
	1	3	9	28	85	253	742	2151	6177	17600
		1	4	12	38	117	352	1041	3038	8772
			1	5	15	48	149	451	1340	3925
				1	6	18	58	181	550	1639
					1	7	21	68	213	649
						1	8	24	78	245
							1	9	27	88
								1	10	30
									1	11
										1