A271617 - OEIS

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A271617 as a triangular array

										1
									1		3
								1		3		2
							1		4		17		6
						1		4		17		114		240
					1		4		26		114		240		2238
				1		4		26		307		2571		2238		2196
			1		4		27		307		2571		42702		216318		37004
		1		4		27		406		7764		42702		216318		5622392		20454036
	1		4		27		406		7764		222936		3243689		5622392		20454036		970623228

A271617 as a square array

1	1	1	1	1	1	1	1	1	1
3	3	4	4	4	4	4	4	4
2	17	17	26	26	27	27	27
6	114	114	307	307	406	406
240	240	2571	2571	7764	7764
2238	2238	42702	42702	222936
2196	216318	216318	3243689
37004	5622392	5622392
20454036	20454036
970623228

A271617 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	3	3	4	4	4	4	4	4	4
		2	17	17	26	26	27	27	27
			6	114	114	307	307	406	406
				240	240	2571	2571	7764	7764
					2238	2238	42702	42702	222936
						2196	216318	216318	3243689
							37004	5622392	5622392
								20454036	20454036
									970623228