A247404 - OEIS

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A247404 as a triangular array

										0
									40		0
								200		40		0
							760		264		40		0
						2280		1544		340		40		0
					5640		6216		3200		428		40		0
				12120		19080		17164		6752		528		40		0
			23800		49032		65500		47592		14456		640		40		0
		43040		113896		201172		225488		132368		31240		864		40		0
	73840		237456		553328

A247404 as a square array

0	40	200	760	2280	5640	12120	23800	43040	73840
0	40	264	1544	6216	19080	49032	113896	237456
0	40	340	3200	17164	65500	201172	553328
0	40	428	6752	47592	225488
0	40	528	14456	132368
0	40	640	31240
0	40	864
0	40
0

A247404 as an upper right triangle

0	40	200	760	2280	5640	12120	23800	43040	73840
	0	40	264	1544	6216	19080	49032	113896	237456
		0	40	340	3200	17164	65500	201172	553328
			0	40	428	6752	47592	225488
				0	40	528	14456	132368
					0	40	640	31240
						0	40	864
							0	40
								0