A089308 - OEIS

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

A089308 as a triangular array

												1
											2		3
										3		4		5
									4		5		6		10
								5		6		7		8		9
							6		7		8		9		10		11
						7		8		9		10		11		12		14
					8		9		10		11		12		14		15		16
				9		10		11		12		13		14		15		16		21
			10		11		12		13		14		15		17		18		19		20
		11		12		13		14		15		16		17		18		19		20		21
	12		13		14		15		16		17		18		19		20		21		22		23

A089308 as a square array

1	2	3	4	5	6	7	8	9	10	11	12
3	4	5	6	7	8	9	10	11	12	13
5	6	7	8	9	10	11	12	13	14
10	8	9	10	11	12	13	14	15
9	10	11	12	13	14	15	16
11	12	14	14	15	16	17
14	15	15	17	17	18
16	16	18	18	19
21	19	19	20
20	20	21
21	22
23

A089308 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11	12
	3	4	5	6	7	8	9	10	11	12	13
		5	6	7	8	9	10	11	12	13	14
			10	8	9	10	11	12	13	14	15
				9	10	11	12	13	14	15	16
					11	12	14	14	15	16	17
						14	15	15	17	17	18
							16	16	18	18	19
								21	19	19	20
									20	20	21
										21	22
											23