A209767 - OEIS

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

A209767 as a triangular array

										1
									1		2
								2		6		5
							3		12		20		12
						4		21		52		63		29
					5		33		109		199		187		70
				6		48		200		490		700		536		169
			7		66		334		1032		1988		2322		1498		408
		8		87		520		1948		4742		7488		7378		4109		985
	9		111		767		3388		10004		19992		26664		22685		11109

A209767 as a square array

1	1	2	3	4	5	6	7	8	9
2	6	12	21	33	48	66	87	111
5	20	52	109	200	334	520	767
12	63	199	490	1032	1948	3388
29	187	700	1988	4742	10004
70	536	2322	7488	19992
169	1498	7378	26664
408	4109	22685
985	11109

A209767 as an upper right triangle

1	1	2	3	4	5	6	7	8	9
	2	6	12	21	33	48	66	87	111
		5	20	52	109	200	334	520	767
			12	63	199	490	1032	1948	3388
				29	187	700	1988	4742	10004
					70	536	2322	7488	19992
						169	1498	7378	26664
							408	4109	22685
								985	11109