A026758 - OEIS

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A026758 as a triangular array

												1
											1		1
										1		2		1
									1		4		3		1
								1		5		7		4		1
							1		7		16		11		5		1
						1		8		23		27		16		6		1
					1		10		38		66		43		22		7		1
				1		11		48		104		109		65		29		8		1
			1		13		69		190		279		174		94		37		9		1
		1		14		82		259		469		453		268		131		46		10		1
	1		16		109		410		918		1201		721		399		177		56		11		1

A026758 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
1	2	4	5	7	8	10	11	13	14	16
1	3	7	16	23	38	48	69	82	109
1	4	11	27	66	104	190	259	410
1	5	16	43	109	279	469	918
1	6	22	65	174	453	1201
1	7	29	94	268	721
1	8	37	131	399
1	9	46	177
1	10	56
1	11
1

A026758 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	1	2	4	5	7	8	10	11	13	14	16
		1	3	7	16	23	38	48	69	82	109
			1	4	11	27	66	104	190	259	410
				1	5	16	43	109	279	469	918
					1	6	22	65	174	453	1201
						1	7	29	94	268	721
							1	8	37	131	399
								1	9	46	177
									1	10	56
										1	11
											1