A255394 Positions of records in A241216.

1, 2, 4, 8, 16, 44, 100, 268, 676, 1924

Offset

1,2

Comments

Numbers n such that the number of d-swaps required for reversing an n-bit word is greater than n for all k-bit words with k < n.

Terms > 44 are subject to the condition that including non-optimal partitions in the splitting scheme described in A241216 does not change the optimal partitions found in the search.

Links

Table of n, a(n) for n=1..10.

Crossrefs

Sequence in context: A013116 A012912 A018593 * A081473 A018627 A289671

Adjacent sequences: A255391 A255392 A255393 * A255395 A255396 A255397

Keyword

nonn,hard,more

Author

Joerg Arndt, Feb 22 2015

Status

approved