|
Search: id:A055877
|
|
|
| A055877 |
|
Least increasing sequence with a(1) = 1 and Hankel transform {1,1,1,1,...}. |
|
+0
2
|
|
| 1, 2, 5, 6, 42, 43, 18626, 18627, 5798368522871, 5798368522872, 194935493755610196550803104551677768964, 194935493755610196550803104551677768965
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
Hankel transform {t(n)} of {a(n)} is given by t(n) = Det[{a(1), a(2), ..., a(n)}, {a(2), a(3), ..., a(n+1)}, ..., {a(n), a(n+1), ..., a(2n-1)}].
|
|
EXAMPLE
|
Given that {a(n)} = {1,2,5,6,a(5),...}, a(5) is seen to be 42 since Det[{1,2,5},{2,5,6},{5,6,42}] = 1, whereas Det[{1,2,5},{2,5,6},{5,6,43}] = 2.
|
|
CROSSREFS
|
Adjacent sequences: A055874 A055875 A055876 this_sequence A055878 A055879 A055880
Sequence in context: A008555 A105605 A056441 this_sequence A111190 A009376 A025123
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
John W. Layman (layman(AT)math.vt.edu), Jul 14 2000
|
|
|
Search completed in 0.002 seconds
|
