A261137 - OEIS

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A261137 as a triangular array

										1
									0		0
								0		0		1
							0		0		0		1
						0		0		1		3		4
					0		0		0		5		10		11
				0		0		1		11		31		40		41
			0		0		0		21		91		147		161		162
		0		0		1		43		274		568		694		714		715
	0		0		0		85		820		2227		3151		3397		3424		3425
0		0		1		171		2461		8824		14851		17251		17686		17721		17722

A261137 as a square array

1	0	0	0	0	0	0	0	0	0	0
0	0	0	0	0	0	0	0	0	0
1	0	1	0	1	0	1	0	1
1	3	5	11	21	43	85	171
4	10	31	91	274	820	2461
11	40	147	568	2227	8824
41	161	694	3151	14851
162	714	3397	17251
715	3424	17686
3425	17721
17722

A261137 as an upper right triangle

1	0	0	0	0	0	0	0	0	0	0
	0	0	0	0	0	0	0	0	0	0
		1	0	1	0	1	0	1	0	1
			1	3	5	11	21	43	85	171
				4	10	31	91	274	820	2461
					11	40	147	568	2227	8824
						41	161	694	3151	14851
							162	714	3397	17251
								715	3424	17686
									3425	17721
										17722