Thursday, December 18, 2014
7894
7894
= 2 x 3947.
7894
is a number
n
for which
n
and 8
n
together use each digit from 1 to 9 exactly once (
A115932
).
7894
is the number of isocent sequences of length 15 with exactly nine ascents (
A243235
).
Source:
What's Special About This Number?
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment