A320253 - OEIS

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A320253 as a triangular array

										1
									1		0
								1		1		0
							1		3		3		0
						1		6		23		13		0
					1		10		86		261		75		0
				1		15		230		1836		3947		541		0
			1		21		505		7900		52250		74613		4683		0
		1		28		973		25425		361754		1858716		1692563		47293		0
	1		36		1708		67473		1706629		20706700		79345346		44794221		545835		0

A320253 as a square array

1	1	1	1	1	1	1	1	1	1
0	1	3	6	10	15	21	28	36
0	3	23	86	230	505	973	1708
0	13	261	1836	7900	25425	67473
0	75	3947	52250	361754	1706629
0	541	74613	1858716	20706700
0	4683	1692563	79345346
0	47293	44794221
0	545835
0

A320253 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	0	1	3	6	10	15	21	28	36
		0	3	23	86	230	505	973	1708
			0	13	261	1836	7900	25425	67473
				0	75	3947	52250	361754	1706629
					0	541	74613	1858716	20706700
						0	4683	1692563	79345346
							0	47293	44794221
								0	545835
									0