A115127 - OEIS

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A115127 as a triangular array

									3
								6		7
							10		16		19
						15		30		47		56
					21		50		95		146		174
				28		77		170		311		471		561
			36		112		280		586		1043		1562		1859
		45		156		434		1015		2044		3564		5291		6292
	55		210		642		1652		3682		7204		12363		18226		21658
66		275		915		2562		6230		13392		25623

A115127 as a square array

3	6	10	15	21	28	36	45	55	66
7	16	30	50	77	112	156	210	275
19	47	95	170	280	434	642	915
56	146	311	586	1015	1652	2562
174	471	1043	2044	3682	6230
561	1562	3564	7204	13392
1859	5291	12363	25623
6292	18226
21658

A115127 as an upper right triangle

3	6	10	15	21	28	36	45	55	66
	7	16	30	50	77	112	156	210	275
		19	47	95	170	280	434	642	915
			56	146	311	586	1015	1652	2562
				174	471	1043	2044	3682	6230
					561	1562	3564	7204	13392
						1859	5291	12363	25623
							6292	18226
								21658