A389487 - OEIS

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A389487 as a triangular array

											1
										1		0
									1		1		0
								1		4		0		0
							1		11		5		0		0
						1		26		41		3		0		0
					1		57		212		86		3		0		0
				1		120		890		964		151		0		0		0
			1		247		3327		7416		3267		237		0		0		0
		1		502		11583		46465		43501		9585		284		0		0		0
	1		1013		38510		256330		436600		209088		24780		387		0		0		0

A389487 as a square array

1	1	1	1	1	1	1	1	1	1	1
0	1	4	11	26	57	120	247	502	1013
0	0	5	41	212	890	3327	11583	38510
0	0	3	86	964	7416	46465	256330
0	0	3	151	3267	43501	436600
0	0	0	237	9585	209088
0	0	0	284	24780
0	0	0	387
0	0	0
0	0
0

A389487 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1
	0	1	4	11	26	57	120	247	502	1013
		0	0	5	41	212	890	3327	11583	38510
			0	0	3	86	964	7416	46465	256330
				0	0	3	151	3267	43501	436600
					0	0	0	237	9585	209088
						0	0	0	284	24780
							0	0	0	387
								0	0	0
									0	0
										0