A231441 - OEIS

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A231441 as a triangular array

											1
										2		2
									3		4		3
								6		8		8		6
							11		17		21		17		11
						23		45		54		54		45		23
					47		104		185		182		185		104		47
				102		280		561		820		820		561		280		102
			221		752		1943		3071		4450		3071		1943		752		221
		492		2076		6756		13458		21472		21472		13458		6756		2076		492
	1099		5947

A231441 as a square array

1	2	3	6	11	23	47	102	221	492	1099
2	4	8	17	45	104	280	752	2076	5947
3	8	21	54	185	561	1943	6756
6	17	54	182	820	3071	13458
11	45	185	820	4450	21472
23	104	561	3071	21472
47	280	1943	13458
102	752	6756
221	2076
492

A231441 as an upper right triangle

1	2	3	6	11	23	47	102	221	492	1099
	2	4	8	17	45	104	280	752	2076	5947
		3	8	21	54	185	561	1943	6756
			6	17	54	182	820	3071	13458
				11	45	185	820	4450	21472
					23	104	561	3071	21472
						47	280	1943	13458
							102	752	6756
								221	2076
									492