A046218 - OEIS

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A046218 as a triangular array

												1
											1		1
										1		1		1
									1		3		3		1
								1		5		3		5		1
							1		7		11		11		7		1
						1		9		9		11		9		9		1
					1		11		27		20		20		27		11		1
				1		13		19		67		40		67		19		13		1
			1		15		51		105		147		147		105		51		15		1
		1		17		33		78		126		147		126		78		33		17		1
	1		19		83		111		204

A046218 as a square array

1	1	1	1	1	1	1	1	1	1	1	1
1	1	3	5	7	9	11	13	15	17	19
1	3	3	11	9	27	19	51	33	83
1	5	11	11	20	67	105	78	111
1	7	9	20	40	147	126	204
1	9	27	67	147	147
1	11	19	105	126
1	13	51	78
1	15	33
1	17
1

A046218 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1	1
	1	1	3	5	7	9	11	13	15	17	19
		1	3	3	11	9	27	19	51	33	83
			1	5	11	11	20	67	105	78	111
				1	7	9	20	40	147	126	204
					1	9	27	67	147	147
						1	11	19	105	126
							1	13	51	78
								1	15	33
									1	17
										1