A057281 - OEIS

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A057281 as a triangular array

								1
							5		16
						20		160		300
					75		1075		4850		6840
				275		6100		48175		159650		186120
			1000		31550		379700		2168650		5846700		5916240
		3625		153875		2605175		22426825		103057800		238437900		215717040
	13125		720375		16273875		195469125

A057281 as a square array

1	5	20	75	275	1000	3625	13125
16	160	1075	6100	31550	153875	720375
300	4850	48175	379700	2605175	16273875
6840	159650	2168650	22426825	195469125
186120	5846700	103057800
5916240	238437900
215717040

A057281 as an upper right triangle

1	5	20	75	275	1000	3625	13125
	16	160	1075	6100	31550	153875	720375
		300	4850	48175	379700	2605175	16273875
			6840	159650	2168650	22426825	195469125
				186120	5846700	103057800
					5916240	238437900
						215717040