A271701 - OEIS

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A271701 as a triangular array

										1
									0		1
								0		1		2
							0		1		3		8
						0		1		4		13		41
					0		1		5		19		69		252
				0		1		6		26		106		431		1782
			0		1		7		34		153		681		3068		14121
		0		1		8		43		211		1016		4929		24361		123244
	0		1		9		53		281		1451		7515		39537		212509		1169832

A271701 as a square array

1	0	0	0	0	0	0	0	0	0
1	1	1	1	1	1	1	1	1
2	3	4	5	6	7	8	9
8	13	19	26	34	43	53
41	69	106	153	211	281
252	431	681	1016	1451
1782	3068	4929	7515
14121	24361	39537
123244	212509
1169832

A271701 as an upper right triangle

1	0	0	0	0	0	0	0	0	0
	1	1	1	1	1	1	1	1	1
		2	3	4	5	6	7	8	9
			8	13	19	26	34	43	53
				41	69	106	153	211	281
					252	431	681	1016	1451
						1782	3068	4929	7515
							14121	24361	39537
								123244	212509
									1169832