A117408 - OEIS

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A117408 as a triangular array

														1
													0		1
												1		0		1
											1		0		0		1
										2		0		0		0		1
									2		1		0		0		0		1
								3		1		0		0		0		0		1
							4		1		0		0		0		0		0		1
						5		1		1		0		0		0		0		0		1
					6		2		1		0		0		0		0		0		0		1
				8		2		1		0		0		0		0		0		0		0		1
			10		2		1		1		0		0		0		0		0		0		0		1
		12		3		1		1		0		0		0		0		0		0		0		0		1
	15		4		1		1		0		0		0		0		0		0		0		0		0

A117408 as a square array

1	0	1	1	2	2	3	4	5	6	8	10	12	15
1	0	0	0	1	1	1	1	2	2	2	3	4
1	0	0	0	0	0	1	1	1	1	1	1
1	0	0	0	0	0	0	0	1	1	1
1	0	0	0	0	0	0	0	0	0
1	0	0	0	0	0	0	0	0
1	0	0	0	0	0	0	0
1	0	0	0	0	0	0
1	0	0	0	0	0
1	0	0	0	0
1	0	0	0
1	0	0
1	0

A117408 as an upper right triangle

1	0	1	1	2	2	3	4	5	6	8	10	12	15
	1	0	0	0	1	1	1	1	2	2	2	3	4
		1	0	0	0	0	0	1	1	1	1	1	1
			1	0	0	0	0	0	0	0	1	1	1
				1	0	0	0	0	0	0	0	0	0
					1	0	0	0	0	0	0	0	0
						1	0	0	0	0	0	0	0
							1	0	0	0	0	0	0
								1	0	0	0	0	0
									1	0	0	0	0
										1	0	0	0
											1	0	0
												1	0