A153520 - OEIS

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A153520 as a triangular array

										2
									7		7
								2		94		2
							2		341		341		2
						2		357		1340		357		2
					2		373		4084		4084		373		2
				2		389		6956		17548		6956		389		2
			2		405		9956		53092		53092		9956		405		2
		2		421		13084		111740		229020		111740		13084		421		2
	2		437		16340		194516		712404		712404		194516		16340		437		2

A153520 as a square array

2	7	2	2	2	2	2	2	2	2
7	94	341	357	373	389	405	421	437
2	341	1340	4084	6956	9956	13084	16340
2	357	4084	17548	53092	111740	194516
2	373	6956	53092	229020	712404
2	389	9956	111740	712404
2	405	13084	194516
2	421	16340
2	437
2

A153520 as an upper right triangle

2	7	2	2	2	2	2	2	2	2
	7	94	341	357	373	389	405	421	437
		2	341	1340	4084	6956	9956	13084	16340
			2	357	4084	17548	53092	111740	194516
				2	373	6956	53092	229020	712404
					2	389	9956	111740	712404
						2	405	13084	194516
							2	421	16340
								2	437
									2