A214870 - OEIS

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A214870 as a triangular array

											1
										2		3
									5		4		7
								10		9		8		13
							17		16		6		14		21
						26		25		11		12		22		31
					37		36		18		15		20		32		43
				50		49		27		24		23		30		44		57
			65		64		38		35		19		33		42		58		73
		82		81		51		48		28		29		45		56		74		91
	101		100		66		63		39		34		41		59		72		92		111

A214870 as a square array

1	2	5	10	17	26	37	50	65	82	101
3	4	9	16	25	36	49	64	81	100
7	8	6	11	18	27	38	51	66
13	14	12	15	24	35	48	63
21	22	20	23	19	28	39
31	32	30	33	29	34
43	44	42	45	41
57	58	56	59
73	74	72
91	92
111

A214870 as an upper right triangle

1	2	5	10	17	26	37	50	65	82	101
	3	4	9	16	25	36	49	64	81	100
		7	8	6	11	18	27	38	51	66
			13	14	12	15	24	35	48	63
				21	22	20	23	19	28	39
					31	32	30	33	29	34
						43	44	42	45	41
							57	58	56	59
								73	74	72
									91	92
										111