A151942 - OEIS

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A151942 as a triangular array

												1
											2		3
										4		6		5
									8		12		10		7
								16		15		11		14		9
							23		21		13		19		18		20
						28		24		17		29		27		22		31
					38		30		25		40		36		26		35		42
				49		33		32		44		45		34		43		48		53
			62		39		37		52		54		41		50		60		61		64
		70		51		47		59		63		46		55		66		68		74		75
	77		57		58		73		72		56

A151942 as a square array

1	2	4	8	16	23	28	38	49	62	70	77
3	6	12	15	21	24	30	33	39	51	57
5	10	11	13	17	25	32	37	47	58
7	14	19	29	40	44	52	59	73
9	18	27	36	45	54	63	72
20	22	26	34	41	46	56
31	35	43	50	55
42	48	60	66
53	61	68
64	74
75

A151942 as an upper right triangle

1	2	4	8	16	23	28	38	49	62	70	77
	3	6	12	15	21	24	30	33	39	51	57
		5	10	11	13	17	25	32	37	47	58
			7	14	19	29	40	44	52	59	73
				9	18	27	36	45	54	63	72
					20	22	26	34	41	46	56
						31	35	43	50	55
							42	48	60	66
								53	61	68
									64	74
										75