A205161 - OEIS

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A205161 as a triangular array

									1
								2		2
							4		15		4
						12		159		159		12
					40		2191		6941		2191		40
				143		31168		332285		332285		31168		143
			528		447343		15821727		54314298		15821727		447343		528
		1979		6427791		754700909		8797534495		8797534495		754700909		6427791		1979
	7466		92387812

A205161 as a square array

1	2	4	12	40	143	528	1979	7466
2	15	159	2191	31168	447343	6427791	92387812
4	159	6941	332285	15821727	754700909
12	2191	332285	54314298	8797534495
40	31168	15821727	8797534495
143	447343	754700909
528	6427791
1979

A205161 as an upper right triangle

1	2	4	12	40	143	528	1979	7466
	2	15	159	2191	31168	447343	6427791	92387812
		4	159	6941	332285	15821727	754700909
			12	2191	332285	54314298	8797534495
				40	31168	15821727	8797534495
					143	447343	754700909
						528	6427791
							1979