A285722 - OEIS

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

A285722 as a triangular array

														0
													1		1
												2		0		3
											4		3		2		6
										7		5		0		5		10
									11		8		6		4		9		15
								16		12		9		0		8		14		21
							22		17		13		10		7		13		20		28
						29		23		18		14		0		12		19		27		36
					37		30		24		19		15		11		18		26		35		45
				46		38		31		25		20		0		17		25		34		44		55
			56		47		39		32		26		21		16		24		33		43		54		66
		67		57		48		40		33		27		0		23		32		42		53		65		78
	79		68		58		49		41		34		28		22		31		41		52		64		77		91

A285722 as a square array

0	1	2	4	7	11	16	22	29	37	46	56	67	79
1	0	3	5	8	12	17	23	30	38	47	57	68
3	2	0	6	9	13	18	24	31	39	48	58
6	5	4	0	10	14	19	25	32	40	49
10	9	8	7	0	15	20	26	33	41
15	14	13	12	11	0	21	27	34
21	20	19	18	17	16	0	28
28	27	26	25	24	23	22
36	35	34	33	32	31
45	44	43	42	41
55	54	53	52
66	65	64
78	77
91

A285722 as an upper right triangle

0	1	2	4	7	11	16	22	29	37	46	56	67	79
	1	0	3	5	8	12	17	23	30	38	47	57	68
		3	2	0	6	9	13	18	24	31	39	48	58
			6	5	4	0	10	14	19	25	32	40	49
				10	9	8	7	0	15	20	26	33	41
					15	14	13	12	11	0	21	27	34
						21	20	19	18	17	16	0	28
							28	27	26	25	24	23	22
								36	35	34	33	32	31
									45	44	43	42	41
										55	54	53	52
											66	65	64
												78	77
													91