A102539 - OEIS

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A102539 as a triangular array

										2
									3		4
								4		10		8
							5		20		35		16
						6		35		112		126		32
					7		56		294		672		462		64
				8		84		672		2772		4224		1716		128
			9		120		1386		9504		28314		27456		6435		256
		10		165		2640		28314		151008		306735		183040		24310		512
	11		220		4719		75504		674817

A102539 as a square array

2	3	4	5	6	7	8	9	10	11
4	10	20	35	56	84	120	165	220
8	35	112	294	672	1386	2640	4719
16	126	672	2772	9504	28314	75504
32	462	4224	28314	151008	674817
64	1716	27456	306735
128	6435	183040
256	24310
512

A102539 as an upper right triangle

2	3	4	5	6	7	8	9	10	11
	4	10	20	35	56	84	120	165	220
		8	35	112	294	672	1386	2640	4719
			16	126	672	2772	9504	28314	75504
				32	462	4224	28314	151008	674817
					64	1716	27456	306735
						128	6435	183040
							256	24310
								512