A203330 - OEIS

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A203330 as a triangular array

									3
								6		6
							10		32		10
						15		133		133		15
					21		510		1510		510		21
				28		1792		15300		15300		1792		28
			36		6050		143690		423595		143690		6050		36
		45		19641		1274165		10809576		10809576		1274165		19641		45
	55		62471		10806894		261192161		759320283

A203330 as a square array

3	6	10	15	21	28	36	45	55
6	32	133	510	1792	6050	19641	62471
10	133	1510	15300	143690	1274165	10806894
15	510	15300	423595	10809576	261192161
21	1792	143690	10809576	759320283
28	6050	1274165
36	19641
45

A203330 as an upper right triangle

3	6	10	15	21	28	36	45	55
	6	32	133	510	1792	6050	19641	62471
		10	133	1510	15300	143690	1274165	10806894
			15	510	15300	423595	10809576	261192161
				21	1792	143690	10809576	759320283
					28	6050	1274165
						36	19641
							45