A217653 - OEIS

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

A217653 as a triangular array

											1
										0		1
									1		0		1
								2		1		0		1
							7		2		1		0		1
						23		7		2		1		0		1
					122		23		7		2		1		0		1
				888		122		23		7		2		1		0		1
			11302		888		122		23		7		2		1		0		1
		262322		11302		888		122		23		7		2		1		0		1
	11730500		262322		11302		888		122		23		7		2		1		0		1

A217653 as a square array

1	0	1	2	7	23	122	888	11302	262322	11730500
1	0	1	2	7	23	122	888	11302	262322
1	0	1	2	7	23	122	888	11302
1	0	1	2	7	23	122	888
1	0	1	2	7	23	122
1	0	1	2	7	23
1	0	1	2	7
1	0	1	2
1	0	1
1	0
1

A217653 as an upper right triangle

1	0	1	2	7	23	122	888	11302	262322	11730500
	1	0	1	2	7	23	122	888	11302	262322
		1	0	1	2	7	23	122	888	11302
			1	0	1	2	7	23	122	888
				1	0	1	2	7	23	122
					1	0	1	2	7	23
						1	0	1	2	7
							1	0	1	2
								1	0	1
									1	0
										1