A330763 - OEIS

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A330763 as a triangular array

									1
								1		2
							2		8		8
						5		41		90		58
					12		204		852		1264		612
				33		1046		7428		19568		21510		8374
			90		5456		62682		262912		496270		431040		140408
		261		29165		523167		3291021		9520220		13884960		9947294		2785906
	766		158792		4358182		39636784		165204730		360421716		426677440		259854304		63830764

A330763 as a square array

1	1	2	5	12	33	90	261	766
2	8	41	204	1046	5456	29165	158792
8	90	852	7428	62682	523167	4358182
58	1264	19568	262912	3291021	39636784
612	21510	496270	9520220	165204730
8374	431040	13884960	360421716
140408	9947294	426677440
2785906	259854304
63830764

A330763 as an upper right triangle

1	1	2	5	12	33	90	261	766
	2	8	41	204	1046	5456	29165	158792
		8	90	852	7428	62682	523167	4358182
			58	1264	19568	262912	3291021	39636784
				612	21510	496270	9520220	165204730
					8374	431040	13884960	360421716
						140408	9947294	426677440
							2785906	259854304
								63830764