A197207 - OEIS

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A197207 as a triangular array

										1
									1		1
								2		5		2
							3		16		16		3
						4		47		100		47		4
					6		154		588		588		154		6
				9		496		3649		7073		3649		496		9
			13		1601		22210		82408		82408		22210		1601		13
		19		5183		135560		977946		1890344		977946		135560		5183		19
	28		16777		827698		11746093		44049565

A197207 as a square array

1	1	2	3	4	6	9	13	19	28
1	5	16	47	154	496	1601	5183	16777
2	16	100	588	3649	22210	135560	827698
3	47	588	7073	82408	977946	11746093
4	154	3649	82408	1890344	44049565
6	496	22210	977946
9	1601	135560
13	5183
19

A197207 as an upper right triangle

1	1	2	3	4	6	9	13	19	28
	1	5	16	47	154	496	1601	5183	16777
		2	16	100	588	3649	22210	135560	827698
			3	47	588	7073	82408	977946	11746093
				4	154	3649	82408	1890344	44049565
					6	496	22210	977946
						9	1601	135560
							13	5183
								19