A318390 - OEIS

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A318390 as a triangular array

										1
									1		2
								1		6		8
							1		14		48		56
						1		30		200		560		552
					1		62		720		3640		8280		7202
				1		126		2408		19600		77280		151242		118456
			1		254		7728		95256		579600		1915732		3316768		2369922
		1		510		24200		435120		3836952		19056492		54726672		85317192		56230544
	1

A318390 as a square array

1	1	1	1	1	1	1	1	1	1
2	6	14	30	62	126	254	510
8	48	200	720	2408	7728	24200
56	560	3640	19600	95256	435120
552	8280	77280	579600	3836952
7202	151242	1915732	19056492
118456	3316768	54726672
2369922	85317192
56230544

A318390 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	2	6	14	30	62	126	254	510
		8	48	200	720	2408	7728	24200
			56	560	3640	19600	95256	435120
				552	8280	77280	579600	3836952
					7202	151242	1915732	19056492
						118456	3316768	54726672
							2369922	85317192
								56230544