A227588 - OEIS

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A227588 as a triangular array

										1
									1		1
								1		2		1
							1		3		2		1
						1		4		4		2		1
					1		5		7		5		2		1
				1		6		12		12		6		2		1
			1		7		18		24		16		7		2		1
		1		8		26		46		42		23		8		2		1
	1		9		35		83		101		73		29		9		2		1

A227588 as a square array

1	1	1	1	1	1	1	1	1	1
1	2	3	4	5	6	7	8	9
1	2	4	7	12	18	26	35
1	2	5	12	24	46	83
1	2	6	16	42	101
1	2	7	23	73
1	2	8	29
1	2	9
1	2
1

A227588 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	1	2	3	4	5	6	7	8	9
		1	2	4	7	12	18	26	35
			1	2	5	12	24	46	83
				1	2	6	16	42	101
					1	2	7	23	73
						1	2	8	29
							1	2	9
								1	2
									1