OFFSET
1,7
COMMENTS
A233380 gives the X-coordinate.
LINKS
Paul Tek, Table of n, a(n) for n = 1..10000
EXAMPLE
The following diagram depicts the first 7 bricks:
Y
^
|
+-------------+
| 7 |
2 +-----+-------+---+
| 3 | 6 |
1 +-+---+-------+---+-----+
|1| 2 | 4 | 5 |
0 +-+---+-------+---------+
Hence:
a(1)=a(2)=a(4)=a(5)=0
a(3)=a(6)=1
a(7)=2
CROSSREFS
KEYWORD
nonn
AUTHOR
Paul Tek, Dec 08 2013
STATUS
approved