A000369 - OEIS

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

A000369 as a triangular array

									1
								3		1
							21		9		1
						231		111		18		1
					3465		1785		345		30		1
				65835		35595		7650		825		45		1
			1514205		848925		196245		24150		1680		63		1
		40883535		23586255		5755050		775845		62790		3066		84		1
	1267389585		748471185		190482705		27478710

A000369 as a square array

1	3	21	231	3465	65835	1514205	40883535	1267389585
1	9	111	1785	35595	848925	23586255	748471185
1	18	345	7650	196245	5755050	190482705
1	30	825	24150	775845	27478710
1	45	1680	62790
1	63	3066
1	84
1

A000369 as an upper right triangle

1	3	21	231	3465	65835	1514205	40883535	1267389585
	1	9	111	1785	35595	848925	23586255	748471185
		1	18	345	7650	196245	5755050	190482705
			1	30	825	24150	775845	27478710
				1	45	1680	62790
					1	63	3066
						1	84
							1