A176169 Binary encoding of shortest and then lexicographically earliest series s(1..A176168(n)), with bits left to right indicating add (1) or subtract (0), to reproduce the series

0, 1, 14, 14, 3832, 62932, 62932, 489410, 251086320, 32139050754, 64066862850, 64066862850, 64066862850, 64066862850, 1025140088642, 16401115874018, 16401122582146, 33589494671714858, 33589494671724714, 138391864700172810

Offset

1,3

Comments

The encoding preserves the lexicographic order of series of the same length

Links

R. H. Hardin, Table of n, a(n) for n=1..80

Example

a(3)=14, binary 1110, because the shortest series is 1 2 4 7 3, or, starting with 1, add 1, add 2, add 3, subtract 4

Crossrefs

See A176168 for definitions

Sequence in context: A377190 A165835 A134913 * A168548 A004455 A142865

Adjacent sequences: A176166 A176167 A176168 * A176170 A176171 A176172

Keyword

nonn

Author

R. H. Hardin Apr 10 2010

Status

approved