A194897 - OEIS

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

A194897 as a triangular array

												1
											2		3
										4		5		6
									7		8		9		10
								11		12		13		14		15
							17		18		19		20		21		16
						23		25		26		27		28		22		24
					30		32		34		35		36		29		31		33
				38		40		42		44		45		37		39		41		43
			47		49		51		53		55		46		48		50		52		54
		57		59		61		63		65		56		58		60		62		64		66
	69		71		73

A194897 as a square array

1	2	4	7	11	17	23	30	38	47	57	69
3	5	8	12	18	25	32	40	49	59	71
6	9	13	19	26	34	42	51	61	73
10	14	20	27	35	44	53	63
15	21	28	36	45	55	65
16	22	29	37	46	56
24	31	39	48	58
33	41	50	60
43	52	62
54	64
66

A194897 as an upper right triangle

1	2	4	7	11	17	23	30	38	47	57	69
	3	5	8	12	18	25	32	40	49	59	71
		6	9	13	19	26	34	42	51	61	73
			10	14	20	27	35	44	53	63
				15	21	28	36	45	55	65
					16	22	29	37	46	56
						24	31	39	48	58
							33	41	50	60
								43	52	62
									54	64
										66