A263293 - OEIS

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A263293 as a triangular array

										1
									1		1
								1		1		2
							1		2		4		4
						1		2		8		12		11
					1		3		15		43		60		34
				1		3		25		121		360		378		156
			1		4		41		378		2166		4869		3843		1044
		1		4		65		1095		14306		68774		113622		64455		12346
	1		5		100		3441		104829		1141597		3953162		4605833		1921532		274668

A263293 as a square array

1	1	1	1	1	1	1	1	1	1
1	1	2	2	3	3	4	4	5
2	4	8	15	25	41	65	100
4	12	43	121	378	1095	3441
11	60	360	2166	14306	104829
34	378	4869	68774	1141597
156	3843	113622	3953162
1044	64455	4605833
12346	1921532
274668

A263293 as an upper right triangle

1	1	1	1	1	1	1	1	1	1
	1	1	2	2	3	3	4	4	5
		2	4	8	15	25	41	65	100
			4	12	43	121	378	1095	3441
				11	60	360	2166	14306	104829
					34	378	4869	68774	1141597
						156	3843	113622	3953162
							1044	64455	4605833
								12346	1921532
									274668