OFFSET
0,6
LINKS
Rémy Sigrist, Table of n, a(n) for n = 0..8066
Rémy Sigrist, PARI program for A334221
EXAMPLE
The "forward" branch of curve U starting from the origin is as follows:
|
6| 25..
| |
5| 24
| |
4| 21...22...23
| |
3| 20 15...14
| | | |
2| 5....6 19 16 13
| | | | | |
1| 4 7 18...17 12
| | | |
0| 0....1....2....3 8....9...10...11
---+----------------------------------------
y/x| 0 1 2 3 4 5 6 7
- hence a(5) = a(6) = a(13) = a(16) = a(19) = 2.
PROG
(PARI) See Links section.
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Rémy Sigrist, Apr 19 2020
STATUS
approved