A116666 - OEIS

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A116666 as a triangular array

											1
										1		3
									1		6		5
								1		9		15		7
							1		12		30		28		9
						1		15		50		70		45		11
					1		18		75		140		135		66		13
				1		21		105		245		315		231		91		15
			1		24		140		392		630		616		364		120		17
		1		27		180		588		1134		1386		1092		540		153		19
	1		30		225		840		1890		2772

A116666 as a square array

1	1	1	1	1	1	1	1	1	1	1
3	6	9	12	15	18	21	24	27	30
5	15	30	50	75	105	140	180	225
7	28	70	140	245	392	588	840
9	45	135	315	630	1134	1890
11	66	231	616	1386	2772
13	91	364	1092
15	120	540
17	153
19

A116666 as an upper right triangle

1	1	1	1	1	1	1	1	1	1	1
	3	6	9	12	15	18	21	24	27	30
		5	15	30	50	75	105	140	180	225
			7	28	70	140	245	392	588	840
				9	45	135	315	630	1134	1890
					11	66	231	616	1386	2772
						13	91	364	1092
							15	120	540
								17	153
									19