A227263 - OEIS

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A227263 as a triangular array

										2
									3		3
								4		9		4
							5		23		23		5
						6		50		98		50		6
					7		96		353		353		96		7
				8		168		1111		2201		1111		168		8
			9		274		3136		11932		11932		3136		274		9
		10		423		8065		57146		112349		57146		8065		423		10
	11		625		19146		244818		937865		937865		244818		19146		625		11

A227263 as a square array

2	3	4	5	6	7	8	9	10	11
3	9	23	50	96	168	274	423	625
4	23	98	353	1111	3136	8065	19146
5	50	353	2201	11932	57146	244818
6	96	1111	11932	112349	937865
7	168	3136	57146	937865
8	274	8065	244818
9	423	19146
10	625
11

A227263 as an upper right triangle

2	3	4	5	6	7	8	9	10	11
	3	9	23	50	96	168	274	423	625
		4	23	98	353	1111	3136	8065	19146
			5	50	353	2201	11932	57146	244818
				6	96	1111	11932	112349	937865
					7	168	3136	57146	937865
						8	274	8065	244818
							9	423	19146
								10	625
									11