|
| |
|
|
A144464
|
|
Triangle T(n,m) read by rows: T(n,m) = 2^min(m,n-m).
|
|
6
| |
|
|
1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 4, 2, 1, 1, 2, 4, 4, 2, 1, 1, 2, 4, 8, 4, 2, 1, 1, 2, 4, 8, 8, 4, 2, 1, 1, 2, 4, 8, 16, 8, 4, 2, 1, 1, 2, 4, 8, 16, 16, 8, 4, 2, 1, 1, 2, 4, 8, 16, 32, 16, 8, 4, 2, 1
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,5
|
|
|
FORMULA
| Row sums: sum_{m=0..n} T(n,m) = A027383(n).
|
|
|
EXAMPLE
| The triangle starts in row n=0 as:
{1},
{1, 1},
{1, 2, 1},
{1, 2, 2, 1},
{1, 2, 4, 2, 1},
{1, 2, 4, 4, 2, 1},
{1, 2, 4, 8, 4, 2, 1},
{1, 2, 4, 8, 8, 4, 2, 1},
{1, 2, 4, 8, 16, 8, 4, 2, 1},
{1, 2, 4, 8, 16, 16, 8, 4, 2, 1},
{1, 2, 4, 8, 16, 32, 16, 8, 4, 2, 1}
|
|
|
MATHEMATICA
| Clear[f, t]; f[n_, m_] = If[m <= Floor[n/2], m, n - m]; Table[Table[f[n, m], {m, 0, n}], {n, 0, 10}]; Flatten[%]
|
|
|
PROG
| (PARI) T(n, m)=1<<min(m, n-m) \\ Charles R Greathouse IV, Jan 15 2012
|
|
|
CROSSREFS
| Sequence in context: A110537 A144434 A159936 * A138015 A103444 A099172
Adjacent sequences: A144461 A144462 A144463 * A144465 A144466 A144467
|
|
|
KEYWORD
| nonn,easy,tabl
|
|
|
AUTHOR
| Roger L. Bagula and Gary W. Adamson (rlbagulatftn(AT)yahoo.com), Oct 09 2008
|
|
|
EXTENSIONS
| Offset corrected by the Associate Editors of the OEIS, Sep 11 2009
|
| |
|
|
