A035312 - OEIS

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A035312 as a triangular array

											1
										2		3
									4		6		9
								7		11		17		26
							5		12		23		40		66
						8		13		25		48		88		154
					10		18		31		56		104		192		346
				14		24		42		73		129		233		425		771
			15		29		53		95		168		297		530		955		1726
		19		34		63		116		211		379		676		1206		2161		3887
	16		35		69		132		248		459		838

A035312 as a square array

1	2	4	7	5	8	10	14	15	19	16
3	6	11	12	13	18	24	29	34	35
9	17	23	25	31	42	53	63	69
26	40	48	56	73	95	116	132
66	88	104	129	168	211	248
154	192	233	297	379	459
346	425	530	676	838
771	955	1206
1726	2161
3887

A035312 as an upper right triangle

1	2	4	7	5	8	10	14	15	19	16
	3	6	11	12	13	18	24	29	34	35
		9	17	23	25	31	42	53	63	69
			26	40	48	56	73	95	116	132
				66	88	104	129	168	211	248
					154	192	233	297	379	459
						346	425	530	676	838
							771	955	1206
								1726	2161
									3887