OFFSET
1,2
COMMENTS
This sequence can be represented as a binary tree. Each left hand child is produced as A268677(n), and each right hand child as A268678(1+n), when the parent node contains n:
|
...................1...................
2 3
6......../ \........4 9......../ \........5
/ \ / \ / \ / \
/ \ / \ / \ / \
/ \ / \ / \ / \
13 11 10 7 21 18 12 8
29 23 25 20 24 19 14 15 45 40 39 34 28 22 17 16
etc.
LINKS
PROG
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Antti Karttunen, Feb 11 2016
STATUS
approved