A202871 - OEIS

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A202871 as a triangular array

											1
										3		3
									4		10		4
								7		15		15		7
							11		25		26		25		11
						18		40		43		43		40		18
					29		65		69		75		69		65		29
				47		105		112		120		120		112		105		47
			76		170		181		195		196		195		181		170		76
		123		275		293		315		318		318		315		293		275		123
	199		445		474		510		514

A202871 as a square array

1	3	4	7	11	18	29	47	76	123	199
3	10	15	25	40	65	105	170	275	445
4	15	26	43	69	112	181	293	474
7	25	43	75	120	195	315	510
11	40	69	120	196	318	514
18	65	112	195	318
29	105	181	315
47	170	293
76	275
123

A202871 as an upper right triangle

1	3	4	7	11	18	29	47	76	123	199
	3	10	15	25	40	65	105	170	275	445
		4	15	26	43	69	112	181	293	474
			7	25	43	75	120	195	315	510
				11	40	69	120	196	318	514
					18	65	112	195	318
						29	105	181	315
							47	170	293
								76	275
									123