A059503 - OEIS

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A059503 as a triangular array

											1
										2		3
									3		5		9
								4		7		14		27
							5		9		19		40		80
						6		11		24		53		114		234
					7		13		29		66		148		323		677
				8		15		34		79		182		412		910		1941
			9		17		39		92		216		501		1143		2551		5523
		10		19		44		105		250		590		1376		3161		7120		15615
	11		21		49		118

A059503 as a square array

1	2	3	4	5	6	7	8	9	10	11
3	5	7	9	11	13	15	17	19	21
9	14	19	24	29	34	39	44	49
27	40	53	66	79	92	105	118
80	114	148	182	216	250
234	323	412	501	590
677	910	1143	1376
1941	2551	3161
5523	7120
15615

A059503 as an upper right triangle

1	2	3	4	5	6	7	8	9	10	11
	3	5	7	9	11	13	15	17	19	21
		9	14	19	24	29	34	39	44	49
			27	40	53	66	79	92	105	118
				80	114	148	182	216	250
					234	323	412	501	590
						677	910	1143	1376
							1941	2551	3161
								5523	7120
									15615