A231080 - OEIS

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A231080 as a triangular array

										0
									0		0
								0		2		0
							0		14		2		0
						0		40		50		16		0
					0		356		136		784		34		0
				0		1840		2820		6400		5098		154		0
			0		10128		38000		523936		71944		54426		432		0
		0		60808		421920		18937480		18655220		1866192		441392		1618		0
	0		337016		6118120		696453136

A231080 as a square array

0	0	0	0	0	0	0	0	0	0
0	2	14	40	356	1840	10128	60808	337016
0	2	50	136	2820	38000	421920	6118120
0	16	784	6400	523936	18937480	696453136
0	34	5098	71944	18655220
0	154	54426	1866192
0	432	441392
0	1618
0

A231080 as an upper right triangle

0	0	0	0	0	0	0	0	0	0
	0	2	14	40	356	1840	10128	60808	337016
		0	2	50	136	2820	38000	421920	6118120
			0	16	784	6400	523936	18937480	696453136
				0	34	5098	71944	18655220
					0	154	54426	1866192
						0	432	441392
							0	1618
								0