A273964 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A273964 as a triangular array

									1
								2		2
							5		10		5
						15		105		105		15
					51		1264		2766		1264		51
				187		15418		49702		49702		15418		187
			715		188465		784878		543906		784878		188465		715
		2795		2304141		13322548		4010258		4010258		13322548		2304141		2795
	11051		28171070		232027264

A273964 as a square array

1	2	5	15	51	187	715	2795	11051
2	10	105	1264	15418	188465	2304141	28171070
5	105	2766	49702	784878	13322548	232027264
15	1264	49702	543906	4010258
51	15418	784878	4010258
187	188465	13322548
715	2304141
2795

A273964 as an upper right triangle

1	2	5	15	51	187	715	2795	11051
	2	10	105	1264	15418	188465	2304141	28171070
		5	105	2766	49702	784878	13322548	232027264
			15	1264	49702	543906	4010258
				51	15418	784878	4010258
					187	188465	13322548
						715	2304141
							2795