A267911 - OEIS

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A267911 as a triangular array

									1
								2		2
							4		14		5
						11		96		122		13
					29		726		2304		938		34
				77		5046		47916		43972		6734		88
			201		35574		878004		2331981		754852		45938		225
		525		242406		16435188		104491831		98614986		12017350		302402		569
	1361		1653750		292341636

A267911 as a square array

1	2	4	11	29	77	201	525	1361
2	14	96	726	5046	35574	242406	1653750
5	122	2304	47916	878004	16435188	292341636
13	938	43972	2331981	104491831
34	6734	754852	98614986
88	45938	12017350
225	302402
569

A267911 as an upper right triangle

1	2	4	11	29	77	201	525	1361
	2	14	96	726	5046	35574	242406	1653750
		5	122	2304	47916	878004	16435188	292341636
			13	938	43972	2331981	104491831
				34	6734	754852	98614986
					88	45938	12017350
						225	302402
							569