A238396 - OEIS

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A238396 as a triangular array

										1
									2		0
								9		1		0
							54		20		0		0
						378		307		21		0		0
					2916		4280		966		0		0		0
				24057		56914		27954		1485		0		0		0
			208494		736568		650076		113256		0		0		0		0
		1876446		9370183		13271982		5008230		225225		0		0		0		0
	17399772		117822512		248371380		167808024		24635754		0		0		0		0		0
165297834		1469283166		4366441128		4721384790		1495900107		59520825		0

A238396 as a square array

1	2	9	54	378	2916	24057	208494	1876446	17399772	165297834
0	1	20	307	4280	56914	736568	9370183	117822512	1469283166
0	0	21	966	27954	650076	13271982	248371380	4366441128
0	0	0	1485	113256	5008230	167808024	4721384790
0	0	0	0	225225	24635754	1495900107
0	0	0	0	0	59520825
0	0	0	0	0
0	0	0
0	0
0

A238396 as an upper right triangle

1	2	9	54	378	2916	24057	208494	1876446	17399772	165297834
	0	1	20	307	4280	56914	736568	9370183	117822512	1469283166
		0	0	21	966	27954	650076	13271982	248371380	4366441128
			0	0	0	1485	113256	5008230	167808024	4721384790
				0	0	0	0	225225	24635754	1495900107
					0	0	0	0	0	59520825
						0	0	0	0	0
							0	0	0
								0	0
									0