A228823 - OEIS

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A228823 as a triangular array

												1
											2		1
										5		2		1
									9		5		2		1
								17		9		5		2		1
							27		17		9		5		2		1
						46		27		17		9		5		2		1
					69		46		27		17		9		5		2		1
				108		69		46		27		17		9		5		2		1
			158		108		69		46		27		17		9		5		2		1
		234		158		108		69		46		27		17		9		5		2		1
	331		234		158		108		69

A228823 as a square array

1	2	5	9	17	27	46	69	108	158	234	331
1	2	5	9	17	27	46	69	108	158	234
1	2	5	9	17	27	46	69	108	158
1	2	5	9	17	27	46	69	108
1	2	5	9	17	27	46	69
1	2	5	9	17	27
1	2	5	9	17
1	2	5	9
1	2	5
1	2
1

A228823 as an upper right triangle

1	2	5	9	17	27	46	69	108	158	234	331
	1	2	5	9	17	27	46	69	108	158	234
		1	2	5	9	17	27	46	69	108	158
			1	2	5	9	17	27	46	69	108
				1	2	5	9	17	27	46	69
					1	2	5	9	17	27
						1	2	5	9	17
							1	2	5	9
								1	2	5
									1	2
										1