|
| |
|
|
A115616
|
|
Smallest number for which Knuth's power tree method produces an addition chain n terms longer than the shortest possible chains for this number.
|
|
3
| | |
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| The sequence is based on a table of shortest addition chain lengths computed by N. Clift (neillclift(AT)msn.com), see link to A. Flammenkamp's web page given at A003313.
|
|
|
CROSSREFS
| Cf. A114622 [The power tree (as defined by Knuth)], A003313 [Length of shortest addition chain for n], A113945 [numbers such that Knuth's power tree method produces a result deficient by 1], A115614 [numbers such that Knuth's power tree method produces a result deficient by 2], A115615 [numbers such that Knuth's power tree method produces a result deficient by 3].
Sequence in context: A107787 A099638 A046191 * A120799 A196543 A201983
Adjacent sequences: A115613 A115614 A115615 * A115617 A115618 A115619
|
|
|
KEYWORD
| bref,hard,more,nonn
|
|
|
AUTHOR
| Hugo Pfoertner (hugo(AT)pfoertner.org) and N. Clift (neillclift(AT)msn.com), Feb 15 2006
|
| |
|
|
