A131268 - OEIS

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

A131268 as a triangular array

													1
												1		1
											1		1		1
										1		1		3		1
									1		1		5		3		1
								1		1		7		5		5		1
							1		1		9		7		11		5		1
						1		1		11		9		19		11		7		1
					1		1		13		11		29		19		19		7		1
				1		1		15		13		41		29		39		19		9		1
			1		1		17		15		55		41		69		39		29		9		1
		1		1		19		17		71		55		111		69		69		29		11		1
	1		1		21		19		89		71		167		111		139		69		41		11		1

A131268 as a square array

1	1	1	1	1	1	1	1	1	1	1	1	1
1	1	1	1	1	1	1	1	1	1	1	1
1	3	5	7	9	11	13	15	17	19	21
1	3	5	7	9	11	13	15	17	19
1	5	11	19	29	41	55	71	89
1	5	11	19	29	41	55	71
1	7	19	39	69	111	167
1	7	19	39	69	111
1	9	29	69	139
1	9	29	69
1	11	41
1	11
1

A131268 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1	1
	1	1	1	1	1	1	1	1	1	1	1	1
		1	3	5	7	9	11	13	15	17	19	21
			1	3	5	7	9	11	13	15	17	19
				1	5	11	19	29	41	55	71	89
					1	5	11	19	29	41	55	71
						1	7	19	39	69	111	167
							1	7	19	39	69	111
								1	9	29	69	139
									1	9	29	69
										1	11	41
											1	11
												1