A271439 - OEIS

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A271439 as a triangular array

												0
											0		1
										0		2		3
									0		4		5		6
								0		7		8		9		10
							0		11		12		13		14		15
						0		16		17		18		19		20		21
					0		22		23		24		25		26		27		28
				0		29		30		31		32		33		34		35		36
			0		37		38		39		40		41		42		43		44		45
		0		46		47		48		49		50		51		52		53		54		55
	0		56		57		58

A271439 as a square array

0	0	0	0	0	0	0	0	0	0	0	0
1	2	4	7	11	16	22	29	37	46	56
3	5	8	12	17	23	30	38	47	57
6	9	13	18	24	31	39	48	58
10	14	19	25	32	40	49
15	20	26	33	41	50
21	27	34	42	51
28	35	43	52
36	44	53
45	54
55

A271439 as an upper right triangle

0	0	0	0	0	0	0	0	0	0	0	0
	1	2	4	7	11	16	22	29	37	46	56
		3	5	8	12	17	23	30	38	47	57
			6	9	13	18	24	31	39	48	58
				10	14	19	25	32	40	49
					15	20	26	33	41	50
						21	27	34	42	51
							28	35	43	52
								36	44	53
									45	54
										55

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Last modified September 24 12:17 EDT 2024. Contains 376196 sequences. (Running on oeis4.)