A221573 - OEIS

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

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A221573 as a triangular array

										0
									0		2
								0		5		2
							0		10		9		4
						0		17		26		25		6
					0		26		59		100		57		10
				0		37		114		289		342		141		16
			0		50		197		676		1293		1210		345		26
		0		65		314		1369		3734		5913		4240		853		42
	0		82		471		2500		8991		20944		26911		14898		2097		68
0		101		674		4225		19014

A221573 as a square array

0	0	0	0	0	0	0	0	0	0	0
2	5	10	17	26	37	50	65	82	101
2	9	26	59	114	197	314	471	674
4	25	100	289	676	1369	2500	4225
6	57	342	1293	3734	8991	19014
10	141	1210	5913	20944
16	345	4240	26911
26	853	14898
42	2097
68

A221573 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0
	2	5	10	17	26	37	50	65	82	101
		2	9	26	59	114	197	314	471	674
			4	25	100	289	676	1369	2500	4225
				6	57	342	1293	3734	8991	19014
					10	141	1210	5913	20944
						16	345	4240	26911
							26	853	14898
								42	2097
									68