A377657 - OEIS

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A377657 as a triangular array

										1
									0		2
								0		3		3
							0		9		10		4
						0		27		90		21		5
					0		81		850		371		36		6
				0		243		8050		7077		1044		55		7
			0		729		76250		135779		33300		2365		78		8
		0		2187		722250		2606261		1070244		113311		4654		105		9
	0		6561		6841250		50028755		34420356		5476405		312390		8295		136		10

A377657 as a square array

1	0	0	0	0	0	0	0	0	0
2	3	9	27	81	243	729	2187	6561
3	10	90	850	8050	76250	722250	6841250
4	21	371	7077	135779	2606261	50028755
5	36	1044	33300	1070244	34420356
6	55	2365	113311	5476405
7	78	4654	312390
8	105	8295
9	136
10

A377657 as an upper right triangle

1	0	0	0	0	0	0	0	0	0
	2	3	9	27	81	243	729	2187	6561
		3	10	90	850	8050	76250	722250	6841250
			4	21	371	7077	135779	2606261	50028755
				5	36	1044	33300	1070244	34420356
					6	55	2365	113311	5476405
						7	78	4654	312390
							8	105	8295
								9	136
									10