|
| |
|
|
A155038
|
|
Matrix inverse of A154990.
|
|
3
| |
|
|
1, 1, 1, 2, 1, 1, 4, 2, 1, 1, 8, 4, 2, 1, 1, 16, 8, 4, 2, 1, 1, 32, 16, 8, 4, 2, 1, 1, 64, 32, 16, 8, 4, 2, 1, 1, 128, 64, 32, 16, 8, 4, 2, 1, 1, 256, 128, 64, 32, 16, 8, 4, 2, 1, 1, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 1, 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 1, 2048, 1024, 512
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,4
|
|
|
COMMENTS
| Apart from first term essentially the same as A057728. A011782 appears in the columns. A155039=A155038-A155033.
Riordan array ((1-x)/(1-2x), x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Jan 24 2010]
|
|
|
EXAMPLE
| Table begins:
1,
1,1,
2,1,1,
4,2,1,1,
8,4,2,1,1,
16,8,4,2,1,1,
32,16,8,4,2,1,1,
64,32,16,8,4,2,1,1,
|
|
|
CROSSREFS
| Sequence in context: A141020 A152568 A057728 * A176463 A098050 A111579
Adjacent sequences: A155035 A155036 A155037 * A155039 A155040 A155041
|
|
|
KEYWORD
| nonn,tabl
|
|
|
AUTHOR
| Mats Granvik (mats.granvik(AT)abo.fi), Jan 19 2009
|
| |
|
|
