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A115021 Numbers typed on a keyboard's numeric keypad: start at 1 and read alternately up and down until reaching 9. 0
1, 4, 7, 8, 5, 2, 3, 6, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
EXAMPLE
Other versions:
1 2 3 6 5 4 7 8 9
3 6 9 8 5 2 1 4 7
3 2 1 4 5 6 9 8 7
7 8 9 6 5 4 1 2 3
7 4 1 2 5 8 9 6 3
9 6 3 2 5 8 7 4 1
9 8 7 4 5 6 3 2 1
CROSSREFS
Sequence in context: A176778 A021213 A154687 * A200367 A272490 A261654
KEYWORD
nonn,fini,full
AUTHOR
Gilson Soares (gilson.soares(AT)gmail.com), Feb 23 2006
STATUS
approved

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Last modified July 21 16:28 EDT 2024. Contains 374475 sequences. (Running on oeis4.)