A008292 - OEIS

(Translated by https://www.hiragana.jp/)
A008292 - OEIS

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A008292 as a triangular array

										1
									1		1
								1		4		1
							1		11		11		1
						1		26		66		26		1
					1		57		302		302		57		1
				1		120		1191		2416		1191		120		1
			1		247		4293		15619		15619		4293		247		1
		1		502		14608		88234		156190		88234		14608		502		1
	1		1013		47840		455192		1310354		1310354		455192		47840		1013		1

A008292 as a square array

1	1	1	1	1	1	1	1	1	1
1	4	11	26	57	120	247	502	1013
1	11	66	302	1191	4293	14608	47840
1	26	302	2416	15619	88234	455192
1	57	1191	15619	156190	1310354
1	120	4293	88234	1310354
1	247	14608	455192
1	502	47840
1	1013
1

A008292 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	1	4	11	26	57	120	247	502	1013
		1	11	66	302	1191	4293	14608	47840
			1	26	302	2416	15619	88234	455192
				1	57	1191	15619	156190	1310354
					1	120	4293	88234	1310354
						1	247	14608	455192
							1	502	47840
								1	1013
									1