A143409 - OEIS

(Translated by https://www.hiragana.jp/)
A143409 - OEIS

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A143409 as a triangular array

										1
									2		1
								5		3		1
							16		11		4		1
						65		49		19		5		1
					326		261		106		29		6		1
				1957		1631		685		193		41		7		1
			13700		11743		5056		1457		316		55		8		1
		109601		95901		42079		12341		2721		481		71		9		1
	986410		876809		390454		116125		25946		4645		694		89		10		1

A143409 as a square array

1	2	5	16	65	326	1957	13700	109601	986410
1	3	11	49	261	1631	11743	95901	876809
1	4	19	106	685	5056	42079	390454
1	5	29	193	1457	12341	116125
1	6	41	316	2721	25946
1	7	55	481	4645
1	8	71	694
1	9	89
1	10
1

A143409 as an upper right triangle

1	2	5	16	65	326	1957	13700	109601	986410
	1	3	11	49	261	1631	11743	95901	876809
		1	4	19	106	685	5056	42079	390454
			1	5	29	193	1457	12341	116125
				1	6	41	316	2721	25946
					1	7	55	481	4645
						1	8	71	694
							1	9	89
								1	10
									1