A128181 - 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

A128181 as a triangular array

									1
								1		2
							2		4		3
						4		8		9		4
					8		16		21		16		5
				16		32		45		44		25		6
			32		64		93		104		80		36		7
		64		128		189		228		210		132		49		8
	128		256		381		480		495		384		203		64		9
256		512		765		988		1095		978		651		296		81		10

A128181 as a square array

1	1	2	4	8	16	32	64	128	256
2	4	8	16	32	64	128	256	512
3	9	21	45	93	189	381	765
4	16	44	104	228	480	988
5	25	80	210	495	1095
6	36	132	384	978
7	49	203	651
8	64	296
9	81
10

A128181 as an upper right triangle

1	1	2	4	8	16	32	64	128	256
	2	4	8	16	32	64	128	256	512
		3	9	21	45	93	189	381	765
			4	16	44	104	228	480	988
				5	25	80	210	495	1095
					6	36	132	384	978
						7	49	203	651
							8	64	296
								9	81
									10