A290632 - OEIS

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A290632 as a triangular array

										1
									2		2
								3		6		3
							4		11		11		4
						5		18		48		18		5
					6		27		109		109		27		6
				7		38		218		488		218		38		7
			8		51		405		1409		1409		405		51		8
		9		66		724		3832		6130		3832		724		66		9
	10		83		1277		10385		21601		21601		10385		1277		83		10

A290632 as a square array

1	2	3	4	5	6	7	8	9	10
2	6	11	18	27	38	51	66	83
3	11	48	109	218	405	724	1277
4	18	109	488	1409	3832	10385
5	27	218	1409	6130	21601
6	38	405	3832	21601
7	51	724	10385
8	66	1277
9	83
10

A290632 as an upper right triangle

1	2	3	4	5	6	7	8	9	10
	2	6	11	18	27	38	51	66	83
		3	11	48	109	218	405	724	1277
			4	18	109	488	1409	3832	10385
				5	27	218	1409	6130	21601
					6	38	405	3832	21601
						7	51	724	10385
							8	66	1277
								9	83
									10