A231806 - OEIS

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A231806 as a triangular array

									5
								13		13
							32		61		32
						79		252		252		79
					200		1120		1699		1120		200
				500		5294		12044		12044		5294		500
			1249		23965		92380		157633		92380		23965		1249
		3133		107961		678081		2192216		2192216		678081		107961		3133
	7845		492274		4939746		28305214

A231806 as a square array

5	13	32	79	200	500	1249	3133	7845
13	61	252	1120	5294	23965	107961	492274
32	252	1699	12044	92380	678081	4939746
79	1120	12044	157633	2192216	28305214
200	5294	92380	2192216
500	23965	678081
1249	107961
3133

A231806 as an upper right triangle

5	13	32	79	200	500	1249	3133	7845
	13	61	252	1120	5294	23965	107961	492274
		32	252	1699	12044	92380	678081	4939746
			79	1120	12044	157633	2192216	28305214
				200	5294	92380	2192216
					500	23965	678081
						1249	107961
							3133