A264802 Position of the n largest occurrences of a shortest addition chain of length n in A003313, written as a triangle.

2, 4, 3, 8, 6, 5, 16, 12, 10, 9, 32, 24, 20, 18, 17, 64, 48, 40, 36, 34, 33, 128, 96, 80, 72, 68, 66, 65, 256, 192, 160, 144, 136, 132, 130, 129, 512, 384, 320, 288, 272, 264, 260, 258, 257

Offset

1,1

Comments

The terms are given with latest occurrence first, which corresponds to the addition chain of length n for the number 2^n.

Links

Table of n, a(n) for n=1..45.

Example

Triangle of the n latest occurrences:
    2
    4   3
    8   6   5
   16  12  10   9
   32  24  20  18  17
   64  48  40  36  34  33
  128  96  80  72  68  66  65
  256 192 160 144 136 132 130 129
  512 384 320 288 272 264 260 258 257

Crossrefs

Cf. A003313.

Sequence in context: A333485 A246166 A334437 * A243493 A127301 A209636

Adjacent sequences: A264799 A264800 A264801 * A264803 A264804 A264805

Keyword

nonn,tabl,easy

Author

Hugo Pfoertner, Dec 17 2015

Status

approved