A216612 - OEIS

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A216612 as a triangular array

											1
										1		1
									1		1		1
								1		1		2		2
							1		2		2		5		2
						2		5		15		20		15		5
					2		15		41		203		67		52		5
				5		52		716		3429		4140		1335		203		15
			5		203		2847		83440		83437		115975		6097		877		15
		15		877		83440		2711768		18171918		20880505		4213597		192713		4140		52
	15		4140

A216612 as a square array

1	1	1	1	1	2	2	5	5	15	15
1	1	1	2	5	15	52	203	877	4140
1	2	2	15	41	716	2847	83440
2	5	20	203	3429	83440	2711768
2	15	67	4140	83437	18171918
5	52	1335	115975	20880505
5	203	6097	4213597
15	877	192713
15	4140
52

A216612 as an upper right triangle

1	1	1	1	1	2	2	5	5	15	15
	1	1	1	2	5	15	52	203	877	4140
		1	2	2	15	41	716	2847	83440
			2	5	20	203	3429	83440	2711768
				2	15	67	4140	83437	18171918
					5	52	1335	115975	20880505
						5	203	6097	4213597
							15	877	192713
								15	4140
									52

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Last modified September 22 18:08 EDT 2024. Contains 376127 sequences. (Running on oeis4.)