|
| |
|
|
A138895
|
|
A Collatz-related sequence array.
|
|
2
| |
|
|
1, 2, 1, 4, 2, 1, 8, 4, 2, 1, 5, 8, 4, 2, 1, 3, 5, 8, 4, 2, 1, 6, 3, 5, 8, 4, 2, 1, 12, 6, 3, 5, 8, 4, 2, 1, 24, 12, 6, 3, 5, 8, 4, 2, 1, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1, 11, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,2
|
|
|
COMMENTS
| Row sums are A138847. Diagonal sums are A138848.
|
|
|
FORMULA
| T(n,k)=[k<=n]*A092892(n-k)
|
|
|
EXAMPLE
| Triangle begins
1,
2, 1,
4, 2, 1,
8, 4, 2, 1,
5, 8, 4, 2, 1,
3, 5, 8, 4, 2, 1,
6, 3, 5, 8, 4, 2, 1,
12, 6, 3, 5, 8, 4, 2, 1,
24, 12, 6, 3, 5, 8, 4, 2, 1,
17, 24, 12, 6, 3, 5, 8, 4, 2, 1,
11, 17, 24, 12, 6, 3, 5, 8, 4, 2, 1
|
|
|
CROSSREFS
| Cf. A138846.
Sequence in context: A140740 A091918 A177953 * A138846 A130321 A101508
Adjacent sequences: A138892 A138893 A138894 * A138896 A138897 A138898
|
|
|
KEYWORD
| easy,nonn,tabl
|
|
|
AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Apr 02 2008
|
| |
|
|
