1,3

a(n) = A014486-index for the n-th tendril of the infinite beanstalk (A179016), which has not been encountered before, constructed with lesser numbers coming to the right, and larger to the left hand side of each branch.

A. Karttunen, Table of n, a(n) for n = 1..72

A. Karttunen, Illustration of how binary trees (the second rightmost column) are encoded by A014486

a(n) = A218788(A218611(n)).

(Scheme): (define (A218610 n) (A218788 (A218611 n)))

These are the mirror-images of binary trees given in A218609, i.e. a(n) = A057163(A218609(n)). A218613 gives the sizes of these trees. Cf. A218611.

Sequence in context: A259334 A210488 A244364 * A346058 A260958 A260965

Adjacent sequences: A218607 A218608 A218609 * A218611 A218612 A218613

nonn

Antti Karttunen, Nov 11 2012

approved