A226992 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A226992 as a triangular array

										5
									10		10
								15		42		15
							21		120		120		21
						28		313		608		313		28
					36		729		2820		2820		729		36
				45		1556		11325		24158		11325		1556		45
			55		3099		40431		180712		180712		40431		3099		55
		66		5818		130479		1187869		2601925		1187869		130479		5818		66
	78		10384

A226992 as a square array

5	10	15	21	28	36	45	55	66	78
10	42	120	313	729	1556	3099	5818	10384
15	120	608	2820	11325	40431	130479
21	313	2820	24158	180712	1187869
28	729	11325	180712	2601925
36	1556	40431	1187869
45	3099	130479
55	5818
66

A226992 as an upper right triangle

5	10	15	21	28	36	45	55	66	78
	10	42	120	313	729	1556	3099	5818	10384
		15	120	608	2820	11325	40431	130479
			21	313	2820	24158	180712	1187869
				28	729	11325	180712	2601925
					36	1556	40431	1187869
						45	3099	130479
							55	5818
								66