A218609 Distinct values of A218787 in the order of appearance.

0, 1, 2, 8, 3, 60, 172, 12, 20, 49, 54, 3016, 10096, 125744802, 101035235, 25, 1358590114, 40796719636668219, 70, 19049, 1770, 18, 7, 16261, 82682568533587123, 17, 36, 307, 315899951699378231, 3871315398, 15215587727307698, 59, 9097520004151634187729920190004140

Offset: 1

Author

Antti Karttunen, Nov 11 2012

Keywords

• nonn

Comments

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 left, and larger to the right hand side of each branch.

Links

• Antti Karttunen, Table of n, a(n) for n = 1..72
• Antti Karttunen, Illustration of how binary trees (the second rightmost column) are encoded by A014486

Crossrefs

These are the mirror-images of binary trees given in A218610, i.e. a(n) = A057163(A218610(n)). A218613 gives the sizes of these trees. Cf. A218611.

Programs

Scheme

(define (A218609 n) (A218787 (A218611 n)))

Formula

a(n) = A218787(A218611(n)).