OFFSET
1,2
COMMENTS
This sequence can be represented as a binary tree. Each left hand child is produced as A257804(n), and each right hand child as A257803(1+n), when the parent contains n:
|
...................1...................
2 4
3......../ \........7 6......../ \........12
/ \ / \ / \ / \
/ \ / \ / \ / \
/ \ / \ / \ / \
5 9 11 21 10 18 19 30
8 17 14 24 16 27 36 54 15 25 31 49 32 52 48 74
etc.
LINKS
FORMULA
PROG
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Antti Karttunen, Jul 27 2015
STATUS
approved