A026736 - OEIS

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

A026736 as a triangular array

												1
											1		1
										1		2		1
									1		3		3		1
								1		5		6		4		1
							1		6		11		10		5		1
						1		7		22		21		15		6		1
					1		8		29		43		36		21		7		1
				1		9		37		94		79		57		28		8		1
			1		10		46		131		173		136		85		36		9		1
		1		11		56		177		398		309		221		121		45		10		1
	1		12		67		233		575		707		530		342		166		55		11		1

A026736 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
1	2	3	5	6	7	8	9	10	11	12
1	3	6	11	22	29	37	46	56	67
1	4	10	21	43	94	131	177	233
1	5	15	36	79	173	398	575
1	6	21	57	136	309	707
1	7	28	85	221	530
1	8	36	121	342
1	9	45	166
1	10	55
1	11
1

A026736 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	1	2	3	5	6	7	8	9	10	11	12
		1	3	6	11	22	29	37	46	56	67
			1	4	10	21	43	94	131	177	233
				1	5	15	36	79	173	398	575
					1	6	21	57	136	309	707
						1	7	28	85	221	530
							1	8	36	121	342
								1	9	45	166
									1	10	55
										1	11
											1