A271698 - OEIS

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

A271698 as a triangular array

											1
										1		0
									0		1		0
								0		2		1		0
							0		2		8		1		0
						0		2		28		22		1		0
					0		2		72		182		52		1		0
				0		2		164		974		864		114		1		0
			0		2		352		4174		8444		3474		240		1		0
		0		2		732		15782		61464		57194		12660		494		1		0
	0		2		1496		55286		373940		660842		332528		43358		1004		1		0

A271698 as a square array

1	1	0	0	0	0	0	0	0	0	0
0	1	2	2	2	2	2	2	2	2
0	1	8	28	72	164	352	732	1496
0	1	22	182	974	4174	15782	55286
0	1	52	864	8444	61464	373940
0	1	114	3474	57194	660842
0	1	240	12660	332528
0	1	494	43358
0	1	1004
0	1
0

A271698 as an upper right triangle

1	1	0	0	0	0	0	0	0	0	0
	0	1	2	2	2	2	2	2	2	2
		0	1	8	28	72	164	352	732	1496
			0	1	22	182	974	4174	15782	55286
				0	1	52	864	8444	61464	373940
					0	1	114	3474	57194	660842
						0	1	240	12660	332528
							0	1	494	43358
								0	1	1004
									0	1
										0