A209998 - OEIS

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

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A209998 as a triangular array

									1
								2		3
							2		8		9
						2		10		30		27
					2		10		46		108		81
				2		10		50		198		378		243
			2		10		50		242		810		1296		729
		2		10		50		250		1122		3186		4374		2187
	2		10		50		250		1234		4986		12150		14580		6561
2		10		50		250		1250		5946		21330		45198		48114		19683

A209998 as a square array

1	2	2	2	2	2	2	2	2	2
3	8	10	10	10	10	10	10	10
9	30	46	50	50	50	50	50
27	108	198	242	250	250	250
81	378	810	1122	1234	1250
243	1296	3186	4986	5946
729	4374	12150	21330
2187	14580	45198
6561	48114
19683

A209998 as an upper right triangle

1	2	2	2	2	2	2	2	2	2
	3	8	10	10	10	10	10	10	10
		9	30	46	50	50	50	50	50
			27	108	198	242	250	250	250
				81	378	810	1122	1234	1250
					243	1296	3186	4986	5946
						729	4374	12150	21330
							2187	14580	45198
								6561	48114
									19683