A181229 - OEIS

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A181229 as a triangular array

											1
										0		2
									0		0		6
								0		0		0		21
							0		0		0		3		79
						0		0		0		0		41		311
					0		0		0		0		0		383		1265
				0		0		0		0		0		26		3073		5275
			0		0		0		0		0		0		702		22835		22431
		0		0		0		0		0		0		0		11734		162517		96900
	0		0		0		0		0		0		0		476		156976		1127399		424068
0		0		0		0		0		0		0		0		20956

A181229 as a square array

1	0	0	0	0	0	0	0	0	0	0	0
2	0	0	0	0	0	0	0	0	0	0
6	0	0	0	0	0	0	0	0	0
21	3	0	0	0	0	0	0	0
79	41	0	0	0	0	0	0
311	383	26	0	0	0	0
1265	3073	702	0	0	0
5275	22835	11734	476	0
22431	162517	156976	20956
96900	1127399
424068

A181229 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0	0
	2	0	0	0	0	0	0	0	0	0	0
		6	0	0	0	0	0	0	0	0	0
			21	3	0	0	0	0	0	0	0
				79	41	0	0	0	0	0	0
					311	383	26	0	0	0	0
						1265	3073	702	0	0	0
							5275	22835	11734	476	0
								22431	162517	156976	20956
									96900	1127399
										424068